List of ''Doctor Who'' episodes (1963–1989)

Doctor Who is a British science fiction television programme produced by the BBC. As of 14 October 2018, 842 episodes of Doctor Who have aired. This includes one television movie and multiple specials, and encompasses 278 stories over 37 seasons. Additionally, four charity specials and two animated serials have also been aired. The programme's high episode count has resulted in Doctor Who holding the world record for the highest number of episodes of a science-fiction programme.^[1]

Doctor Who ceased production in 1989, then resumed in 2005. The original series (1963–1989), generally consists of multi-episode serials; in the early seasons, and occasionally through its run, serials tend to link together, one story leading directly into the next. The 2005 revival trades the earlier serial format for a run of self-contained episodes, interspersed with occasional multi-part stories and structured into loose story arcs.

For the first two seasons of Doctor Who and most of the third (1963–1966), each episode carries its own title; the show displays no titles for overarching serials until The Savages, at which point the episodic titles cease. The below titles for these early serials are those in most common circulation, used for commercial releases and in resources such as the Doctor Who Reference Guide and the BBC's classic episode guide. With the show's revival in 2005, the programme returned to individual episode titles.

Due to the BBC's 1970s junking policy, 97 episodes of Doctor Who from the 1960s are no longer known to exist. As a result, 26 serials are currently incomplete, with one or more episodes represented only by audio and, in many cases, clips or still frames. For commercial release, some episodes have been reconstructed using off-air audio recordings, paired to surviving visuals or newly commissioned animation.

The story numbers below are not official designations; they are meant as a rough guide to placement in the overall context of the programme. There is some dispute, for instance, about whether to count Season 23's The Trial of a Time Lord as one or as four serials,^[2] and whether the unfinished serial Shada should be included.^[3] The numbering scheme in this list reflects an internal practice of describing "Planet of the Dead" (2009) as the 200th story.^[4] Other sources, such as the Region 1 classic Doctor Who DVD releases, use different numbering schemes, which diverge after the 108th story, The Horns of Nimon (1979–1980).

Series overview

The following table dictates the season or series in question for the programme as a whole; singular specials are not included in episode counts or viewer totals.

Season / Series		Era	Doctor	Serials	Episodes	Originally aired		Average viewers (millions)
Season / Series		Era	Doctor	Serials	Episodes	First aired	Last aired	Average viewers (millions)
	Season 1	Classic era	First Doctor	8	42	23 November 1963 (1963-11-23)	12 September 1964 (1964-09-12)	8.08
	Season 2			9	39	31 October 1964 (1964-10-31)	24 July 1965 (1965-07-24)	10.46
	Season 3			10	45	11 September 1965 (1965-09-11)	16 July 1966 (1966-07-16)	8.65
	Season 4^{[lower-alpha 1]}		Second Doctor	9	43	10 September 1966 (1966-09-10)	1 July 1967 (1967-07-01)	6.05
	Season 5			7	40	2 September 1967 (1967-09-02)	1 June 1968 (1968-06-01)	7.23
	Season 6			7	44	10 August 1968 (1968-08-10)	21 June 1969 (1969-06-21)	6.38
	Season 7		Third Doctor	4	25	3 January 1970 (1970-01-03)	20 June 1970 (1970-06-20)	7.17
	Season 8			5	25	2 January 1971 (1971-01-02)	19 June 1971 (1971-06-19)	7.96
	Season 9			5	26	1 January 1972 (1972-01-01)	24 June 1972 (1972-06-24)	8.30
	Season 10			5	26	30 December 1972 (1972-12-30)	23 June 1973 (1973-06-23)	8.87
	Season 11			5	26	15 December 1973 (1973-12-15)	8 June 1974 (1974-06-08)	8.78
	Season 12		Fourth Doctor	5	20	28 December 1974 (1974-12-28)	10 May 1975 (1975-05-10)	10.00
	Season 13			6	26	30 August 1975 (1975-08-30)	6 March 1976 (1976-03-06)	10.14
	Season 14			6	26	4 September 1976 (1976-09-04)	2 April 1977 (1977-04-02)	11.08
	Season 15			6	26	3 September 1977 (1977-09-03)	11 March 1978 (1978-03-11)	8.98
	Season 16^{[lower-alpha 2]}			6	26	2 September 1978 (1978-09-02)	24 February 1979 (1979-02-24)	8.61
	Season 17			5^{[lower-alpha 3]}	20	1 September 1979 (1979-09-01)	12 January 1980 (1980-01-12)	11.21
	Season 18			7	28	30 August 1980 (1980-08-30)	21 March 1981 (1981-03-21)	5.82
	Season 19		Fifth Doctor	7	26	4 January 1982 (1982-01-04)	30 March 1982 (1982-03-30)	9.24
	Season 20			6	22	3 January 1983 (1983-01-03)	16 March 1983 (1983-03-16)	7.03
	Season 21^{[lower-alpha 4]}			7	24	5 January 1984 (1984-01-05)	30 March 1984 (1984-03-30)	7.14
	Season 22		Sixth Doctor	6	13	5 January 1985 (1985-01-05)	30 March 1985 (1985-03-30)	7.12
	Season 23^{[lower-alpha 5]}		Sixth Doctor	1	14	6 September 1986 (1986-09-06)	6 December 1986 (1986-12-06)	4.81
	Season 24		Seventh Doctor	4	14	7 September 1987 (1987-09-07)	7 December 1987 (1987-12-07)	4.94
	Season 25			4	14	5 October 1988 (1988-10-05)	4 January 1989 (1989-01-04)	5.34
	Season 26			4	14	6 September 1989 (1989-09-06)	6 December 1989 (1989-12-06)	4.15
	TV movie	TV movie	Eighth Doctor	1	1	12 May 1996 (1996-05-12)		9.08
	Series 1	Revived era	Ninth Doctor	10	13	26 March 2005 (2005-03-26)	18 June 2005 (2005-06-18)	7.95
	Series 2		Tenth Doctor	10	13	15 April 2006 (2006-04-15)	8 July 2006 (2006-07-08)	7.71
	Series 3			9	13	31 March 2007 (2007-03-31)	30 June 2007 (2007-06-30)	7.55
	Series 4			10	13	5 April 2008 (2008-04-05)	5 July 2008 (2008-07-05)	8.05
	Specials			4	5	25 December 2008 (2008-12-25)	1 January 2010 (2010-01-01)	11.50
	Series 5		Eleventh Doctor	10	13	3 April 2010 (2010-04-03)	26 June 2010 (2010-06-26)	7.73
	Series 6			11	13	23 April 2011 (2011-04-23)	1 October 2011 (2011-10-01)	7.52
	Series 7			13	13	1 September 2012 (2012-09-01)	18 May 2013 (2013-05-18)	7.44
	Specials			2	2	23 November 2013 (2013-11-23)	25 December 2013 (2013-12-25)	11.97
	Series 8		Twelfth Doctor	11	12	23 August 2014 (2014-08-23)	8 November 2014 (2014-11-08)	7.26
	Series 9			9	12	19 September 2015 (2015-09-19)	5 December 2015 (2015-12-05)	6.03
	Series 10			11	12	15 April 2017 (2017-04-15)	1 July 2017 (2017-07-01)	5.45
	Series 11		Thirteenth Doctor	10^[5]	10^[6]	7 October 2018 (2018-10-07)	9 December 2018 (2018-12-09)^[7]	TBA

↑ The First Doctor remained for the first two serials of season 4. The Second Doctor featured for the remainder of the season from the third serial, The Power of the Daleks.
↑ Also known by its subtitle, The Key to Time.
↑ Shada was left unfinished due to a strike. The story was later completed and officially released on home media in 2017. The voices of the original actors with new animation was incorporated to bridge the gaps between the recorded live-action segments. It is not included in the episode or story counts as it was not broadcast.
↑ The Fifth Doctor regenerated in the sixth serial of season 21. The Sixth Doctor featured only in the final serial, The Twin Dilemma.
↑ Also known by its subtitle, The Trial of a Time Lord.

Episodes

First Doctor

The first incarnation of the Doctor was portrayed by William Hartnell. During Hartnell's tenure, the episodes were a mixture of stories set on Earth of the future with extraterrestrial influence, on alien planets, and in historical events without extraterrestrial influence, such as Marco Polo, one of the lost serials. In his last story, The Tenth Planet, the Doctor gradually grew weaker to the point of collapsing at the end of the fourth episode, leading to his regeneration.

Season 1 (1963–1964)

Story	Serial	Title	Directed by	Written by	Original air date	Prod. code	UK viewers (millions) ^[8]	AI ^[8]
1	1	An Unearthly Child "An Unearthly Child" "The Cave of Skulls" "The Forest of Fear" "The Firemaker"	Waris Hussein	Anthony Coburn	23 November 1963 (1963-11-23) 30 November 1963 7 December 1963 14 December 1963	A	4.4 5.9 6.9 6.4	63 59 56 55
2	2	The Daleks "The Dead Planet" "The Survivors" "The Escape" "The Ambush" "The Expedition" "The Ordeal" "The Rescue"	Richard Martin and Christopher Barry	Terry Nation	21 December 1963 (1963-12-21) 28 December 1963 4 January 1964 11 January 1964 18 January 1964 25 January 1964 1 February 1964	B	6.9 6.4 8.9 9.9 9.9 10.4 10.4	59 58 63 63 63 63 65
3	3	The Edge of Destruction "The Edge of Destruction" "The Brink of Disaster"	Richard Martin and Frank Cox	David Whitaker	8 February 1964 (1964-02-08) 15 February 1964	C	10.4 9.9	61 60
4	4	Marco Polo "The Roof of the World"^† "The Singing Sands"^† "Five Hundred Eyes"^† "The Wall of Lies"^† "Rider from Shang-Tu"^† "Mighty Kublai Khan"^† "Assassin at Peking"^†	Waris Hussein and John Crockett	John Lucarotti	22 February 1964 (1964-02-22) 29 February 1964 7 March 1964 14 March 1964 21 March 1964 28 March 1964 4 April 1964	D	9.4 9.4 9.4 9.9 9.4 8.4 10.4	63 62 62 60 59 59 59
5	5	The Keys of Marinus "The Sea of Death" "The Velvet Web" "The Screaming Jungle" "The Snows of Terror" "Sentence of Death" "The Keys of Marinus"	John Gorrie	Terry Nation	11 April 1964 (1964-04-11) 18 April 1964 25 April 1964 2 May 1964 9 May 1964 16 May 1964	E	9.9 9.4 9.9 10.4 7.9 6.9	62 60 61 60 61 63
6	6	The Aztecs "The Temple of Evil" "The Warriors of Death" "The Bride of Sacrifice" "The Day of Darkness"	John Crockett	John Lucarotti	23 May 1964 (1964-05-23) 30 May 1964 6 June 1964 13 June 1964	F	7.4 7.4 7.9 7.4	62 62 57 58
7	7	The Sensorites "Strangers in Space" "The Unwilling Warriors" "Hidden Danger" "A Race Against Death" "Kidnap" "A Desperate Venture"	Mervyn Pinfield and Frank Cox	Peter R. Newman	20 June 1964 (1964-06-20) 27 June 1964 11 July 1964 18 July 1964 25 July 1964 1 August 1964	G	7.9 6.9 7.4 5.5 6.9 6.9	59 59 56 60 57 57
8	8	The Reign of Terror "A Land of Fear" "Guests of Madame Guillotine" "A Change of Identity" "The Tyrant of France"^† "A Bargain of Necessity"^† "Prisoners of Conciergerie"	Henric Hirsch	Dennis Spooner	8 August 1964 (1964-08-08) 15 August 1964 22 August 1964 29 August 1964 5 September 1964 12 September 1964	H	6.9 6.9 6.9 6.4 6.9 6.4	58 54 55 53 53 55

^† Episode is missing

Season 2 (1964–1965)

This season would see the departure of Carol Anne Ford as Susan Foreman in The Dalek Invasion of Earth, and Barbra and Ian in The Chase. Companions Vicki and Steven were introduced in The Rescue and The Time Meddler, respectively.

Story	Serial	Title	Directed by	Written by	Original air date	Prod. code	UK viewers (millions) ^[8]	AI ^[8]
9	1	Planet of Giants "Planet of Giants" "Dangerous Journey" "Crisis"	Mervyn Pinfield and Douglas Camfield	Louis Marks	31 October 1964 (1964-10-31) 7 November 1964 14 November 1964	J	8.4 8.4 8.9	57 58 59
10	2	The Dalek Invasion of Earth "World's End" "The Daleks" "Day of Reckoning" "The End of Tomorrow" "The Waking Ally" "Flashpoint"	Richard Martin	Terry Nation	21 November 1964 (1964-11-21) 28 November 1964 5 December 1964 12 December 1964 19 December 1964 26 December 1964	K	11.4 12.4 11.9 11.9 11.4 12.4	63 59 59 59 58 63
11	3	The Rescue "The Powerful Enemy" "Desperate Measures"	Christopher Barry	David Whitaker	2 January 1965 (1965-01-02) 9 January 1965	L	12.0 13.0	57 59
12	4	The Romans "The Slave Traders" "All Roads Lead to Rome" "Conspiracy" "Inferno"	Christopher Barry	Dennis Spooner	16 January 1965 (1965-01-16) 23 January 1965 30 January 1965 6 February 1965	M	13.0 11.5 10.0 12.0	53 51 50 50
13	5	The Web Planet "The Web Planet" "The Zarbi" "Escape to Danger" "Crater of Needles" "Invasion" "The Centre"	Richard Martin	Bill Strutton	13 February 1965 (1965-02-13) 20 February 1965 27 February 1965 6 March 1965 13 March 1965 20 March 1965	N	13.5 12.5 12.5 13.0 12.0 11.5	56 53 53 49 48 42
14	6	The Crusade "The Lion" "The Knight of Jaffa"^† "The Wheel of Fortune" "The Warlords"^†	Douglas Camfield	David Whitaker	27 March 1965 (1965-03-27) 3 April 1965 10 April 1965 17 April 1965	P	10.5 8.5 9.0 9.5	51 50 49 48
15	7	The Space Museum "The Space Museum" "The Dimensions of Time" "The Search" "The Final Phase"	Mervyn Pinfield	Glyn Jones	24 April 1965 (1965-04-24) 1 May 1965 8 May 1965 15 May 1965	Q	10.5 9.2 8.5 8.5	61 53 56 49
16	8	The Chase "The Executioners" "The Death of Time" "Flight Through Eternity" "Journey into Terror" "The Death of Doctor Who" "The Planet of Decision"	Richard Martin and Douglas Camfield	Terry Nation	22 May 1965 (1965-05-22) 29 May 1965 5 June 1965 12 June 1965 19 June 1965 26 June 1965	R	10.0 9.5 9.0 9.5 9.0 9.5	57 56 55 54 56 57
17	9	The Time Meddler "The Watcher" "The Meddling Monk" "A Battle of Wits" "Checkmate"	Douglas Camfield	Dennis Spooner	3 July 1965 (1965-07-03) 10 July 1965 17 July 1965 24 July 1965	S	8.9 8.8 7.7 8.3	57 49 53 54

^† Episode is missing

Season 3 (1965–1966)

Vicki would leave in The Myth Makers, and be replaced by several companions, such as Katarina, Sarah Kingdom, and Dodo Chaplet. The Savages would mark the final appearance of Steven, and War Machines would introduce companions, Ben and Polly. The practice of giving each individual episode a different title was abandoned after The Gunfighters, near the end of the season.

Story	Serial	Title	Directed by	Written by	Original air date	Prod. code	UK viewers (millions) ^[8]	AI ^[8]
18	1	Galaxy 4 "Four Hundred Dawns"^† "Trap of Steel"^† "Air Lock" "The Exploding Planet"^†	Derek Martinus and Mervyn Pinfield	William Emms	11 September 1965 (1965-09-11) 18 September 1965 25 September 1965 2 October 1965	T	9.0 9.5 11.3 9.9	56 55 54 53
19	2	"Mission to the Unknown"^†	Derek Martinus	Terry Nation	9 October 1965 (1965-10-09)	T/A	8.3	54
20	3	The Myth Makers "Temple of Secrets"^† "Small Prophet, Quick Return"^† "Death of a Spy"^† "Horse of Destruction"^†	Michael Leeston-Smith	Donald Cotton	16 October 1965 (1965-10-16) 23 October 1965 30 October 1965 6 November 1965	U	8.3 8.1 8.7 8.3	48 51 49 52
21	4	The Daleks' Master Plan "The Nightmare Begins"^† "Day of Armageddon" "Devil's Planet"^† "The Traitors"^† "Counter Plot" "Coronas of the Sun"^† "The Feast of Steven"^† "Volcano"^† "Golden Death"^† "Escape Switch" "The Abandoned Planet"^† "Destruction of Time"^†	Douglas Camfield	Terry Nation and Dennis Spooner	13 November 1965 (1965-11-13) 20 November 1965 27 November 1965 4 December 1965 11 December 1965 18 December 1965 25 December 1965 1 January 1966 8 January 1966 15 January 1966 22 January 1966 29 January 1966	V	9.1 9.8 10.3 9.5 9.9 9.1 7.9 9.6 9.2 9.5 9.8 8.6	54 52 52 51 53 56 39 49 52 50 49 57
22	5	The Massacre of St Bartholomew's Eve "War of God"^† "The Sea Beggar"^† "Priest of Death"^† "Bell of Doom"^†	Paddy Russell	John Lucarotti and Donald Tosh	5 February 1966 (1966-02-05) 12 February 1966 19 February 1966 26 February 1966	W	8.0 6.0 5.9 5.8	52 52 49 53
23	6	The Ark "The Steel Sky" "The Plague" "The Return" "The Bomb"	Michael Imison	Paul Erickson and Lesley Scott	5 March 1966 (1966-03-05) 12 March 1966 19 March 1966 26 March 1966	X	5.5 6.9 6.2 7.3	55 56 51 50
24	7	The Celestial Toymaker "The Celestial Toyroom"^† "The Hall of Dolls"^† "The Dancing Floor"^† "The Final Test"	Bill Sellars	Brian Hayles and Donald Tosh	2 April 1966 (1966-04-02) 9 April 1966 16 April 1966 23 April 1966	Y	8.0 8.0 9.4 7.8	48 49 44 43
25	8	The Gunfighters "A Holiday for the Doctor" "Don't Shoot the Pianist" "Johnny Ringo" "The OK Corral"	Rex Tucker	Donald Cotton	30 April 1966 (1966-04-30) 7 May 1966 14 May 1966 21 May 1966	Z	6.5 6.6 6.2 5.7	45 39 36 30
26	9	The Savages (all episodes missing)	Christopher Barry	Ian Stuart Black	28 May 1966 (1966-05-28) 4 June 1966 11 June 1966 18 June 1966	AA	4.8 5.6 5.0 4.5	48 49 48 48
27	10	The War Machines	Michael Ferguson	Ian Stuart Black and Kit Pedler	25 June 1966 (1966-06-25) 2 July 1966 9 July 1966 16 July 1966	BB	5.4 4.7 5.3 5.5	49 45 44 39

^† : Episode is missing

Season 4 (1966–1967)

The Smugglers and The Tenth Planet were the last serials to star the First Doctor, his regeneration to the Second occurring in the latter. It is also notable as the season with the most missing episodes, with not one serial existing in its entirety.

Story	Serial	Title	Directed by	Written by	Original air date	Prod. code	UK viewers (millions) ^[8]	AI ^[8]
28	1	The Smugglers (all episodes missing)	Julia Smith	Brian Hayles	10 September 1966 (1966-09-10) 17 September 1966 24 September 1966 1 October 1966	CC	4.3 4.9 4.2 4.5	47 45 43 43
29	2	The Tenth Planet (episode 4 missing)	Derek Martinus	Kit Pedler and Gerry Davis	8 October 1966 (1966-10-08) 15 October 1966 22 October 1966 29 October 1966	DD	5.5 6.4 7.6 7.5	50 48 48 47

Second Doctor

The Second Doctor was portrayed by Patrick Troughton, whose serials were more action-oriented than those of his predecessor. Additionally, after The Highlanders, stories moved away from the purely historical ones that featured during William Hartnell's tenure; instead, any historical tales also included a science fiction element. Patrick Troughton retained the role until the last episode of The War Games when members of the Doctor's race, the Time Lords, put him on trial for breaking the laws of time and forced him to regenerate.

Season 4 (1966–1967) continued

Story	Serial	Title	Directed by	Written by	Original air date	Prod. code	UK viewers (millions) ^[8]	AI ^[8]
30	3	The Power of the Daleks (all episodes missing) was re-created in animated form	Christopher Barry	David Whitaker and Dennis Spooner	5 November 1966 (1966-11-05) 12 November 1966 19 November 1966 26 November 1966 3 December 1966 10 December 1966	EE	7.9 7.8 7.5 7.8 8.0 7.8	43 45 44 47 48 47
31	4	The Highlanders (all episodes missing)	Hugh David	Elwyn Jones and Gerry Davis	17 December 1966 (1966-12-17) 24 December 1966 31 December 1966 7 January 1967	FF	6.7 6.8 7.4 7.3	47 46 47 47
32	5	The Underwater Menace (episodes 1 & 4 missing)	Julia Smith	Geoffrey Orme	14 January 1967 (1967-01-14) 21 January 1967 28 January 1967 4 February 1967	GG	8.3 7.5 7.1 7.0	48 46 45 47
33	6	The Moonbase (episodes 1 & 3 missing)	Morris Barry	Kit Pedler	11 February 1967 (1967-02-11) 18 February 1967 25 February 1967 4 March 1967	HH	8.1 8.9 8.2 8.1	50 49 53 58
34	7	The Macra Terror (all episodes missing)	John Davies	Ian Stuart Black	11 March 1967 (1967-03-11) 18 March 1967 25 March 1967 1 April 1967	JJ	8.0 7.9 8.5 8.4	50 48 52 49
35	8	The Faceless Ones (episodes 2, 4, 5 & 6 missing)	Gerry Mill	David Ellis and Malcolm Hulke	8 April 1967 (1967-04-08) 15 April 1967 22 April 1967 29 April 1967 6 May 1967 13 May 1967	KK	8.0 6.4 7.9 6.9 7.1 8.0	51 50 53 55 55 52
36	9	The Evil of the Daleks (episodes 1, 3 – 7 missing)	Derek Martinus	David Whitaker	20 May 1967 (1967-05-20) 27 May 1967 3 June 1967 10 June 1967 17 June 1967 24 June 1967 1 July 1967	LL	8.1 7.5 6.1 5.3 5.1 6.8 6.1	51 51 52 51 53 49 56

Season 5 (1967–1968)

This season saw the departure of Victoria Waterfield, and the debut appearance of Zoe.

Story	Serial	Title	Directed by	Written by	Original air date	Prod. code	UK viewers (millions) ^[8]	AI ^[8]
37	1	The Tomb of the Cybermen	Morris Barry	Kit Pedler and Gerry Davis	2 September 1967 (1967-09-02) 9 September 1967 16 September 1967 23 September 1967	MM	6.0 6.4 7.2 7.4	53 52 49 50
38	2	The Abominable Snowmen (episodes 1, 3, 4, 5 & 6 missing)	Gerald Blake	Mervyn Haisman and Henry Lincoln	30 September 1967 (1967-09-30) 7 October 1967 14 October 1967 21 October 1967 28 October 1967 4 November 1967	NN	6.3 6.0 7.1 7.1 7.2 7.4	50 52 51 50 51 52
39	3	The Ice Warriors (episodes 2 & 3 missing)	Derek Martinus	Brian Hayles	11 November 1967 (1967-11-11) 18 November 1967 25 November 1967 2 December 1967 9 December 1967 16 December 1967	OO	6.7 7.1 7.4 7.3 8.0 7.5	52 52 51 51 50 51
40	4	The Enemy of the World	Barry Letts	David Whitaker	23 December 1967 (1967-12-23) 30 December 1967 6 January 1968 13 January 1968 20 January 1968 27 January 1968	PP	6.8 7.6 7.1 7.8 6.9 8.3	50 49 48 49 49 52
41	5	The Web of Fear (episode 3 missing)	Douglas Camfield	Mervyn Haisman and Henry Lincoln	3 February 1968 (1968-02-03) 10 February 1968 17 February 1968 24 February 1968 2 March 1968 9 March 1968	QQ	7.2 6.8 7.0 8.4 8.0 8.3	54 53 51 53 55 55
42	6	Fury from the Deep (All episodes missing)	Hugh David	Victor Pemberton	16 March 1968 (1968-03-16) 23 March 1968 30 March 1968 6 April 1968 13 April 1968 20 April 1968	RR	8.2 7.9 7.7 6.6 5.9 6.9	55 55 56 56 56 57
43	7	The Wheel in Space (episodes 1, 2, 4 & 5 missing)	Tristan DeVere Cole	David Whitaker and Kit Pedler	27 April 1968 (1968-04-27) 4 May 1968 11 May 1968 18 May 1968 25 May 1968 1 June 1968	SS	7.2 6.9 7.5 8.6 6.8 6.5	57 60 55 56 57 62

Season 6 (1968–1969)

Story	Serial	Title	Directed by	Written by	Original air date	Prod. code	UK viewers (millions) ^[8]	AI ^[8]
44	1	The Dominators	Morris Barry	Norman Ashby (Mervyn Haisman and Henry Lincoln)	10 August 1968 (1968-08-10) 17 August 1968 24 August 1968 31 August 1968 7 September 1968	TT	6.1 5.9 5.4 7.5 5.9	52 55 55 51 53
45	2	The Mind Robber	David Maloney	Peter Ling and Derrick Sherwin	14 September 1968 (1968-09-14) 21 September 1968 28 September 1968 5 October 1968 12 October 1968	UU	6.6 6.5 7.2 7.3 6.7	51 49 53 56 49
46	3	The Invasion (episodes 1 & 4 missing)	Douglas Camfield	Derrick Sherwin and Kit Pedler	2 November 1968 (1968-11-02) 9 November 1968 16 November 1968 23 November 1968 30 November 1968 7 December 1968 14 December 1968 21 December 1968	VV	7.3 7.1 7.1 6.4 6.7 6.5 7.2 7.0	55 53 54 51 52 56 55 53
47	4	The Krotons	David Maloney	Robert Holmes	28 December 1968 (1968-12-28) 4 January 1969 11 January 1969 18 January 1969	WW	9.0 8.4 7.5 7.1	59 57 56 55
48	5	The Seeds of Death	Michael Ferguson	Brian Hayles and Terrance Dicks	25 January 1969 (1969-01-25) 1 February 1969 8 February 1969 15 February 1969 22 February 1969 1 March 1969	XX	6.6 6.8 7.5 7.1 7.6 7.7	57 59 55 55 57 59
49	6	The Space Pirates (episodes 1, 3 – 6 missing)	Michael Hart	Robert Holmes	8 March 1969 (1969-03-08) 15 March 1969 22 March 1969 29 March 1969 5 April 1969 12 April 1969	YY	5.8 6.8 6.4 5.8 5.5 5.3	57 52 55 53 56 52
50	7	The War Games	David Maloney	Terrance Dicks and Malcolm Hulke	19 April 1969 (1969-04-19) 26 April 1969 3 May 1969 10 May 1969 17 May 1969 24 May 1969 31 May 1969 7 June 1969 14 June 1969 21 June 1969	ZZ	5.5 6.3 5.1 5.7 5.1 4.2 4.9 3.5 4.1 5.0	55 54 53 50 53 53 53 53 57 58

Third Doctor

The Third Doctor was portrayed by Jon Pertwee. Sentenced to exile on Earth and forcibly regenerated at the end of The War Games, the Doctor spent his time working for UNIT. After The Three Doctors, the Time Lords repealed his exile; however, the Doctor still worked closely with UNIT from time to time. The Third Doctor regenerated into his fourth incarnation as a result of radiation poisoning in the last moments of Planet of the Spiders.

Season 7 (1970)

From this season onwards the programme was produced in colour. To accommodate the new production methods the number of episodes in a season was cut: season 6 has 44 episodes; season 7 has 25 episodes. The seasons would continue to have between 20 and 28 episodes until season 22. This season saw the debut (and unofficial departure) of Liz Shaw.

Story	Serial	Title	Directed by	Written by	Original air date	Prod. code	UK viewers (millions) ^[8]	AI ^[8]
51	1	Spearhead from Space	Derek Martinus	Robert Holmes	3 January 1970 (1970-01-03) 10 January 1970 17 January 1970 24 January 1970	AAA	8.4 8.1 8.3 8.1	54 — — 57
52	2	Doctor Who and the Silurians	Timothy Combe	Malcolm Hulke	31 January 1970 (1970-01-31) 7 February 1970 14 February 1970 21 February 1970 28 February 1970 7 March 1970 14 March 1970	BBB	8.8 7.3 7.5 8.2 7.5 7.2 7.5	58 58 57 60 58 57 58
53	3	The Ambassadors of Death	Michael Ferguson	David Whitaker, Trevor Ray and Malcolm Hulke	21 March 1970 (1970-03-21) 28 March 1970 4 April 1970 11 April 1970 18 April 1970 25 April 1970 2 May 1970	CCC	7.1 7.6 8.0 9.3 7.1 6.9 6.4	60 61 59 58 — 61 62
54	4	Inferno	Douglas Camfield and Barry Letts	Don Houghton	9 May 1970 (1970-05-09) 16 May 1970 23 May 1970 30 May 1970 6 June 1970 13 June 1970 20 June 1970	DDD	5.7 5.9 4.8 6.0 5.4 6.7 5.5	61 61 60 60 — 58 60

Season 8 (1971)

This season forms a loose arc with the introduction of the Master, the villain in each of the season's storylines, and introduces the companion Jo Grant.

Story	Serial	Title	Directed by	Written by	Original air date	Prod. code	UK viewers (millions) ^[8]	AI ^[8]
55	1	Terror of the Autons	Barry Letts	Robert Holmes	2 January 1971 (1971-01-02) 9 January 1971 16 January 1971 23 January 1971	EEE	7.3 8.0 8.1 8.4	—
56	2	The Mind of Evil	Timothy Combe	Don Houghton	30 January 1971 (1971-01-30) 6 February 1971 13 February 1971 20 February 1971 27 February 1971 6 March 1971	FFF	6.1 8.8 7.5 7.4 7.6 7.3	—
57	3	The Claws of Axos	Michael Ferguson	Bob Baker and Dave Martin	13 March 1971 (1971-03-13) 20 March 1971 27 March 1971 3 April 1971	GGG	7.3 8.0 6.4 7.8	—
58	4	Colony in Space	Michael E. Briant	Malcolm Hulke	10 April 1971 (1971-04-10) 17 April 1971 24 April 1971 1 May 1971 8 May 1971 15 May 1971	HHH	7.6 8.5 9.5 8.1 8.8 8.7	—
59	5	The Dæmons	Christopher Barry	Guy Leopold (Robert Sloman and Barry Letts)	22 May 1971 (1971-05-22) 29 May 1971 5 June 1971 12 June 1971 19 June 1971	JJJ	9.2 8.0 8.1 8.1 8.3	—

Season 9 (1972)

Story	Serial	Title	Directed by	Written by	Original air date	Prod. code	UK viewers (millions) ^[8]	AI ^[8]
60	1	Day of the Daleks	Paul Bernard	Louis Marks	1 January 1972 (1972-01-01) 8 January 1972 15 January 1972 22 January 1972	KKK	9.8 10.4 9.1 9.1	—
61	2	The Curse of Peladon	Lennie Mayne	Brian Hayles	29 January 1972 (1972-01-29) 5 February 1972 12 February 1972 19 February 1972	MMM	10.3 11.0 7.8 8.4	—
62	3	The Sea Devils	Michael E. Briant	Malcolm Hulke	26 February 1972 (1972-02-26) 4 March 1972 11 March 1972 18 March 1972 25 March 1972 1 April 1972	LLL	6.4 9.7 8.3 7.8 8.3 8.5	—
63	4	The Mutants	Christopher Barry	Bob Baker and Dave Martin	8 April 1972 (1972-04-08) 15 April 1972 22 April 1972 29 April 1972 6 May 1972 13 May 1972	NNN	9.1 7.8 7.9 7.5 7.9 6.5	—
64	5	The Time Monster	Paul Bernard	Robert Sloman and Barry Letts	20 May 1972 (1972-05-20) 27 May 1972 3 June 1972 10 June 1972 17 June 1972 24 June 1972	OOO	7.6 7.4 8.1 7.6 6.0 7.6	—

Season 10 (1972–1973)

This season marked the final appearance of Jo Grant as a companion.

Story	Serial	Title	Directed by	Written by	Original air date	Prod. code	UK viewers (millions) ^[8]	AI ^[8]
65	1	The Three Doctors	Lennie Mayne	Bob Baker and Dave Martin	30 December 1972 (1972-12-30) 6 January 1973 13 January 1973 20 January 1973	RRR	9.6 10.8 8.8 11.9	—
66	2	Carnival of Monsters	Barry Letts	Robert Holmes	27 January 1973 (1973-01-27) 3 February 1973 10 February 1973 17 February 1973	PPP	9.5 9.0 9.0 9.2	—
67	3	Frontier in Space	Paul Bernard	Malcolm Hulke	24 February 1973 (1973-02-24) 3 March 1973 10 March 1973 17 March 1973 24 March 1973 31 March 1973	QQQ	9.1 7.8 7.5 7.1 7.7 8.9	—
68	4	Planet of the Daleks	David Maloney	Terry Nation	7 April 1973 (1973-04-07) 14 April 1973 21 April 1973 28 April 1973 5 May 1973 12 May 1973	SSS	11.0 10.7 10.1 8.3 9.7 8.5	—
69	5	The Green Death	Michael E. Briant	Robert Sloman and Barry Letts	19 May 1973 (1973-05-19) 26 May 1973 2 June 1973 9 June 1973 16 June 1973 23 June 1973	TTT	9.2 7.2 7.8 6.8 8.3 7.0	—

Season 11 (1973–1974)

This season introduces the companion Sarah Jane Smith.

Story	Serial	Title	Directed by	Written by	Original air date	Prod. code	UK viewers (millions) ^[8]	AI ^[8]
70	1	The Time Warrior	Alan Bromly	Robert Holmes	15 December 1973 (1973-12-15) 22 December 1973 29 December 1973 5 January 1974	UUU	8.7 7.0 6.6 10.6	59 — — 60
71	2	Invasion of the Dinosaurs	Paddy Russell	Malcolm Hulke	12 January 1974 (1974-01-12) 19 January 1974 26 January 1974 2 February 1974 9 February 1974 16 February 1974	WWW	11.0 10.1 11.0 9.0 9.0 7.5	62 — 63 — — 62
72	3	Death to the Daleks	Michael E. Briant	Terry Nation	23 February 1974 (1974-02-23) 2 March 1974 9 March 1974 16 March 1974	XXX	8.1 9.5 10.5 9.5	61 — 61 62
73	4	The Monster of Peladon	Lennie Mayne	Brian Hayles	23 March 1974 (1974-03-23) 30 March 1974 6 April 1974 13 April 1974 20 April 1974 27 April 1974	YYY	9.2 6.8 7.4 7.2 7.5 8.1	—
74	5	Planet of the Spiders	Barry Letts	Robert Sloman and Barry Letts	4 May 1974 (1974-05-04) 11 May 1974 18 May 1974 25 May 1974 1 June 1974 8 June 1974	ZZZ	10.1 8.9 8.8 8.2 9.2 8.9	58 60 57 — — 56

Fourth Doctor

The Fourth Doctor was portrayed by Tom Baker. He is, to date, the actor who has played the Doctor on television for the longest time,^[9] having held the role for seven seasons.

Season 12 (1974–1975)

All serials in this season continue directly one after the other, tracing one single problematic voyage of the TARDIS crew. Despite the continuity, each serial is considered its own standalone story. This season also introduced the character of Harry Sullivan as a companion; this character was intended to undertake action scenes, during the period prior to Tom Baker being cast, when it was unclear how old the actor playing the new Doctor would be.

Story	Serial	Title	Directed by	Written by	Original air date	Prod. code	UK viewers (millions) ^[8]	AI ^[8]
75	1	Robot	Christopher Barry	Terrance Dicks	28 December 1974 (1974-12-28) 4 January 1975 11 January 1975 18 January 1975	4A	10.8 10.7 10.1 9.0	53 53 — 51
76	2	The Ark in Space	Rodney Bennett	Robert Holmes	25 January 1975 (1975-01-25) 1 February 1975 8 February 1975 15 February 1975	4C	9.4 13.6 11.2 10.2	—
77	3	The Sontaran Experiment	Rodney Bennett	Bob Baker and Dave Martin	22 February 1975 (1975-02-22) 1 March 1975	4B	11.0 10.5	— 55
78	4	Genesis of the Daleks	David Maloney	Terry Nation	8 March 1975 (1975-03-08) 15 March 1975 22 March 1975 29 March 1975 5 April 1975 12 April 1975	4E	10.7 10.5 8.5 8.8 9.8 9.1	— 57 — 58 57 56
79	5	Revenge of the Cybermen	Michael E. Briant	Gerry Davis	19 April 1975 (1975-04-19) 26 April 1975 3 May 1975 10 May 1975	4D	9.5 8.3 8.9 9.4	57 — — 58

Season 13 (1975–1976)

During this season, Ian Marter (Harry Sullivan) left after Terror of the Zygons, but returned for a guest appearance in The Android Invasion. Terror of the Zygons also saw the last semi-regular appearance of Nicholas Courtney (Brigadier Lethbridge-Stewart) who would not return until Season 20 in Mawdryn Undead.

Story	Serial	Title	Directed by	Written by	Original air date	Prod. code	UK viewers (millions) ^[8]	AI ^[8]
80	1	Terror of the Zygons	Douglas Camfield	Robert Banks Stewart	30 August 1975 (1975-08-30) 6 September 1975 13 September 1975 20 September 1975	4F	8.4 6.1 8.2 7.2	59 — 54 —
81	2	Planet of Evil	David Maloney	Louis Marks	27 September 1975 (1975-09-27) 4 October 1975 11 October 1975 18 October 1975	4H	10.4 9.9 9.1 10.1	— 56 57 54
82	3	Pyramids of Mars	Paddy Russell	Stephen Harris (Lewis Greifer and Robert Holmes)	25 October 1975 (1975-10-25) 1 November 1975 8 November 1975 15 November 1975	4G	10.5 11.3 9.4 11.7	— — — 60
83	4	The Android Invasion	Barry Letts	Terry Nation	22 November 1975 (1975-11-22) 29 November 1975 6 December 1975 13 December 1975	4J	11.9 11.3 12.1 11.4	58 — — —
84	5	The Brain of Morbius	Christopher Barry	Robin Bland (Terrance Dicks and Robert Holmes)	3 January 1976 (1976-01-03) 10 January 1976 17 January 1976 24 January 1976	4K	9.5 9.3 10.1 10.2	— — 57 —
85	6	The Seeds of Doom	Douglas Camfield	Robert Banks Stewart	31 January 1976 (1976-01-31) 7 February 1976 14 February 1976 21 February 1976 28 February 1976 6 March 1976	4L	11.4 11.4 10.3 11.1 9.9 11.5	59 — — — — —

Season 14 (1976–1977)

Elisabeth Sladen (Sarah Jane Smith) left the series this season and was replaced by Louise Jameson (Leela). The season also saw the first story in which the Doctor did not have a companion, The Deadly Assassin.

Story	Serial	Title	Directed by	Written by	Original air date	Prod. code	UK viewers (millions) ^[8]	AI ^[8]
86	1	The Masque of Mandragora	Rodney Bennett	Louis Marks	4 September 1976 (1976-09-04) 11 September 1976 18 September 1976 25 September 1976	4M	8.3 9.8 9.2 10.6	58 56 — 56
87	2	The Hand of Fear	Lennie Mayne	Bob Baker and Dave Martin	2 October 1976 (1976-10-02) 9 October 1976 16 October 1976 23 October 1976	4N	10.5 10.2 11.1 12.0	— — 62 —
88	3	The Deadly Assassin	David Maloney	Robert Holmes	30 October 1976 (1976-10-30) 6 November 1976 13 November 1976 20 November 1976	4P	11.8 12.1 13.0 11.8	— 59 — 61
89	4	The Face of Evil	Pennant Roberts	Chris Boucher	1 January 1977 (1977-01-01) 8 January 1977 15 January 1977 22 January 1977	4Q	10.7 11.1 11.3 11.7	61 — 59 60
90	5	The Robots of Death	Michael E. Briant	Chris Boucher	29 January 1977 (1977-01-29) 5 February 1977 12 February 1977 19 February 1977	4R	12.8 12.4 13.1 12.6	62 — — 57
91	6	The Talons of Weng-Chiang	David Maloney	Robert Holmes	26 February 1977 (1977-02-26) 5 March 1977 12 March 1977 19 March 1977 26 March 1977 2 April 1977	4S	11.3 9.8 10.2 11.4 10.1 9.3	— — — 60 — 58

Season 15 (1977–1978)

This season saw the final appearance of Leela as companion.

Story	Serial	Title	Directed by	Written by	Original air date	Prod. code	UK viewers (millions) ^[8]	AI ^[8]
92	1	Horror of Fang Rock	Paddy Russell	Terrance Dicks	3 September 1977 (1977-09-03) 10 September 1977 17 September 1977 24 September 1977	4V	6.8 7.1 9.8 9.9	58 — 60 57
93	2	The Invisible Enemy	Derrick Goodwin	Bob Baker and Dave Martin	1 October 1977 (1977-10-01) 8 October 1977 15 October 1977 22 October 1977	4T	8.6 7.3 7.5 8.3	— — — 60
94	3	Image of the Fendahl	George Spenton-Foster	Chris Boucher	29 October 1977 (1977-10-29) 5 November 1977 12 November 1977 19 November 1977	4X	6.7 7.5 7.9 9.1	— — — 61
95	4	The Sun Makers	Pennant Roberts	Robert Holmes	26 November 1977 (1977-11-26) 3 December 1977 10 December 1977 17 December 1977	4W	8.5 9.5 8.9 8.4	— — 68 59
96	5	Underworld	Norman Stewart	Bob Baker and Dave Martin	7 January 1978 (1978-01-07) 14 January 1978 21 January 1978 28 January 1978	4Y	8.9 9.1 8.9 11.7	65 — — —
97	6	The Invasion of Time	Gerald Blake	David Agnew (Graham Williams and Anthony Read)	4 February 1978 (1978-02-04) 11 February 1978 18 February 1978 25 February 1978 4 March 1978 11 March 1978	4Z	11.2 11.4 9.5 10.9 10.3 9.8	56 — — — — —

Season 16 (1978–1979)

Season 16 consists of one long story arc encompassing six separate, linked stories. This season is referred to by the umbrella title The Key to Time and has been released on DVD under this title. This season introduced Mary Tamm as Romana.

Story	Serial	Title	Directed by	Written by	Original air date	Prod. code	UK viewers (millions) ^[8]	AI ^[8]
98	1	The Ribos Operation	George Spenton-Foster	Robert Holmes	2 September 1978 (1978-09-02) 9 September 1978 16 September 1978 23 September 1978	5A	8.3 8.1 7.9 8.2	59 — — 67
99	2	The Pirate Planet	Pennant Roberts	Douglas Adams	30 September 1978 (1978-09-30) 7 October 1978 14 October 1978 21 October 1978	5B	9.1 7.4 8.2 8.4	61 — 64 64
100	3	The Stones of Blood	Darrol Blake	David Fisher	28 October 1978 (1978-10-28) 4 November 1978 11 November 1978 18 November 1978	5C	8.6 6.6 9.3 7.6	— — — 67
101	4	The Androids of Tara	Michael Hayes	David Fisher	25 November 1978 (1978-11-25) 2 December 1978 9 December 1978 16 December 1978	5D	9.5 10.1 8.9 9.0	— 65 — 66
102	5	The Power of Kroll	Norman Stewart	Robert Holmes	23 December 1978 (1978-12-23) 30 December 1978 6 January 1979 13 January 1979	5E	6.5 12.4 8.9 9.9	— — — 63
103	6	The Armageddon Factor	Michael Hayes	Bob Baker and Dave Martin	20 January 1979 (1979-01-20) 27 January 1979 3 February 1979 10 February 1979 17 February 1979 24 February 1979	5F	7.5 8.8 7.8 8.6 8.6 9.6	65 — — — — 66

Season 17 (1979–1980)

During this season, the role of Romana was taken over by Lalla Ward.

Story	Serial	Title	Directed by	Written by	Original air date	Prod. code	UK viewers (millions) ^[8]	AI ^[8]
104	1	Destiny of the Daleks	Ken Grieve	Terry Nation	1 September 1979 (1979-09-01) 8 September 1979 15 September 1979 22 September 1979	5J	13.0 12.7 13.8 14.4	67 — 63 64
105	2	City of Death	Michael Hayes	David Agnew (Douglas Adams, Graham Williams and David Fisher)	29 September 1979 (1979-09-29) 6 October 1979 13 October 1979 20 October 1979	5H	12.4 14.1 15.4 16.1	— 64 — 64
106	3	The Creature from the Pit	Christopher Barry	David Fisher	27 October 1979 (1979-10-27) 3 November 1979 10 November 1979 17 November 1979	5G	9.3 10.8 10.2 9.6	— 67 — —
107	4	Nightmare of Eden	Alan Bromly	Bob Baker	24 November 1979 (1979-11-24) 1 December 1979 8 December 1979 15 December 1979	5K	8.7 9.6 9.6 9.4	— — — 65
108	5	The Horns of Nimon	Kenny McBain	Anthony Read	22 December 1979 (1979-12-22) 29 December 1979 5 January 1980 12 January 1980	5L	6.0 8.8 9.8 10.4	— — — 67
—	6	Shada	Pennant Roberts	Douglas Adams	Unaired^{[note 1]} (Unaired^{[note 1]})	5M	—	—

1 2 Shada was left unfinished due to a strike. Its recorded footage was later released on home video using linking narration by Tom Baker to complete the story. It is not included in the episode or story counts as it was not broadcast.

Season 18 (1980–1981)

In a return to the format of early seasons, virtually all serials from Seasons 18 through 20 are linked together, often running directly into each other. Season 18 forms a loose story arc dealing with the theme of entropy. Full Circle, State of Decay, and Warriors' Gate trace the Doctor's adventures in E-Space; they were released in both VHS and DVD boxsets with the umbrella title The E-Space Trilogy. This season saw the departure of Romana and the introduction of companions Adric and Nyssa, and soon to be companion, Tegan Jovanka.

Story	Serial	Title	Directed by	Written by	Original air date	Prod. code	UK viewers (millions) ^[8]	AI ^[8]
109	1	The Leisure Hive	Lovett Bickford	David Fisher	30 August 1980 (1980-08-30) 6 September 1980 13 September 1980 20 September 1980	5N	5.9 5.0 5.0 4.5	— — — 65
110	2	Meglos	Terence Dudley	John Flanagan & Andrew McCulloch	27 September 1980 (1980-09-27) 4 October 1980 11 October 1980 18 October 1980	5Q	5.0 4.2 4.7 4.7	61 64 — 63
111	3	Full Circle	Peter Grimwade	Andrew Smith	25 October 1980 (1980-10-25) 1 November 1980 8 November 1980 15 November 1980	5R	5.9 3.7 5.9 5.4	— — — 65
112	4	State of Decay	Peter Moffatt	Terrance Dicks	22 November 1980 (1980-11-22) 29 November 1980 6 December 1980 13 December 1980	5P	5.8 5.3 4.4 5.4	— — — 69
113	5	Warriors' Gate	Paul Joyce & Graeme Harper	Stephen Gallagher	3 January 1981 (1981-01-03) 10 January 1981 17 January 1981 24 January 1981	5S	7.1 6.7 8.3 7.8	59 — — 59
114	6	The Keeper of Traken	John Black	Johnny Byrne	31 January 1981 (1981-01-31) 7 February 1981 14 February 1981 21 February 1981	5T	7.6 6.1 5.2 6.1	— — — 63
115	7	Logopolis	Peter Grimwade	Christopher H. Bidmead	28 February 1981 (1981-02-28) 7 March 1981 14 March 1981 21 March 1981	5V	7.7 7.7 5.8 6.1	— 61 — 65

Fifth Doctor

The Fifth Doctor was portrayed by Peter Davison.

Season 19 (1982)

The show moved from its traditional once-weekly Saturday broadcast to being broadcast twice-weekly primarily on Monday and Tuesday, although there were regional variations to the schedule. Castrovalva, together with the previous two serials, The Keeper of Traken and Logopolis, form a trilogy involving the return of the Master. They were released on DVD under the banner title New Beginnings. The season marked the final appearance of Adric as a companion.

Story	Serial	Title	Directed by	Written by	Original air date	Prod. code	UK viewers (millions) ^[8]	AI ^[8]
116	1	Castrovalva	Fiona Cumming	Christopher H. Bidmead	4 January 1982 (1982-01-04) 5 January 1982 11 January 1982 12 January 1982	5Z	9.1 8.6 10.2 10.4	–
117	2	Four to Doomsday	John Black	Terence Dudley	18 January 1982 (1982-01-18) 19 January 1982 25 January 1982 26 January 1982	5W	8.4 8.8 8.9 9.4	–
118	3	Kinda	Peter Grimwade	Christopher Bailey	1 February 1982 (1982-02-01) 2 February 1982 8 February 1982 9 February 1982	5Y	8.4 9.4 8.5 8.9	–
119	4	The Visitation	Peter Moffatt	Eric Saward	15 February 1982 (1982-02-15) 16 February 1982 22 February 1982 23 February 1982	5X	9.1 9.3 9.9 10.1	–
120	5	Black Orchid	Ron Jones	Terence Dudley	1 March 1982 (1982-03-01) 2 March 1982	6A	9.9 10.1	–
121	6	Earthshock	Peter Grimwade	Eric Saward	8 March 1982 (1982-03-08) 9 March 1982 15 March 1982 16 March 1982	6B	9.1 8.8 9.8 9.6	–
122	7	Time-Flight	Ron Jones	Peter Grimwade	22 March 1982 (1982-03-22) 23 March 1982 29 March 1982 30 March 1982	6C	10.0 8.5 8.9 8.1	–

Season 20 (1983)

To commemorate the twentieth season, the stories in this season involve the return of previous villains; Omega, the Mara, the Black Guardian and the Master. Mawdryn Undead, Terminus and Enlightenment involve the Black Guardian's plot to force the Doctor's new companion Vislor Turlough to kill the Doctor; they were released individually on VHS and as a set on DVD as parts of The Black Guardian Trilogy. This season was broadcast twice weekly on Tuesday and Wednesday evenings on BBC1. This was the last season to feature Nyssa as a companion.

Story	Serial	Title	Directed by	Written by	Original air date	Prod. code	UK viewers (millions) ^[8]	AI ^[8]
123	1	Arc of Infinity	Ron Jones	Johnny Byrne	3 January 1983 (1983-01-03) 5 January 1983 11 January 1983 12 January 1983	6E	7.2 7.3 6.9 7.2	69 70 67 66
124	2	Snakedance	Fiona Cumming	Christopher Bailey	18 January 1983 (1983-01-18) 19 January 1983 25 January 1983 26 January 1983	6D	6.7 7.7 6.6 7.4	65 66 67 67
125	3	Mawdryn Undead	Peter Moffatt	Peter Grimwade	1 February 1983 (1983-02-01) 2 February 1983 8 February 1983 9 February 1983	6F	6.5 7.5 7.4 7.7	67 70 67 68
126	4	Terminus	Mary Ridge	Stephen Gallagher	15 February 1983 (1983-02-15) 16 February 1983 22 February 1983 23 February 1983	6G	6.8 7.5 6.5 7.4	65 67 64 67
127	5	Enlightenment	Fiona Cumming	Barbara Clegg	1 March 1983 (1983-03-01) 2 March 1983 8 March 1983 9 March 1983	6H	6.6 7.2 6.2 7.3	67 65 68 70
128	6	The King's Demons	Tony Virgo	Terence Dudley	15 March 1983 (1983-03-15) 16 March 1983	6J	5.8 7.2	65 63
Special
129	—	The Five Doctors	Peter Moffatt	Terrance Dicks	25 November 1983 (1983-11-25)^[10]	6K	7.7	75

Season 21 (1984)

Episodes were broadcast twice weekly on Thursday and Friday evenings, with Resurrection of the Daleks broadcast on two consecutive Wednesday nights. The Caves of Androzani saw the regeneration of the Fifth Doctor, and the season finale The Twin Dilemma was the first story of the Sixth Doctor. The season marked the departure of Tegan Jovanka and Vislor Turlough, as well as the introduction of Nicola Bryant as Peri Brown.

Story	Serial	Title	Directed by	Written by	Original air date	Prod. code	UK viewers (millions) ^[8]	AI ^[8]
130	1	Warriors of the Deep	Pennant Roberts	Johnny Byrne	5 January 1984 (1984-01-05) 6 January 1984 12 January 1984 13 January 1984	6L	7.6 7.5 7.3 6.6	65 64 62 65
131	2	The Awakening	Michael Owen Morris	Eric Pringle	19 January 1984 (1984-01-19) 20 January 1984	6M	7.9 6.6	65 63
132	3	Frontios	Ron Jones	Christopher H. Bidmead	26 January 1984 (1984-01-26) 27 January 1984 2 February 1984 3 February 1984	6N	8.0 5.8 7.8 5.6	66 69 65 65
133	4	Resurrection of the Daleks	Matthew Robinson	Eric Saward	8 February 1984 (1984-02-08) 15 February 1984	6P	7.3 8.0	69 65
134	5	Planet of Fire	Fiona Cumming	Peter Grimwade	23 February 1984 (1984-02-23) 24 February 1984 1 March 1984 2 March 1984	6Q	7.4 6.1 7.4 7.0	—
135	6	The Caves of Androzani	Graeme Harper	Robert Holmes	8 March 1984 (1984-03-08) 9 March 1984 15 March 1984 16 March 1984	6R	6.9 6.6 7.8 7.8	65 — 65 68

Sixth Doctor

The Sixth Doctor was portrayed by Colin Baker.

Season 21 (1984) continued

Story	Serial	Title	Directed by	Written by	Original air date	Prod. code	UK viewers (millions) ^[8]	AI ^[8]
136	7	The Twin Dilemma	Peter Moffatt	Anthony Steven	22 March 1984 (1984-03-22) 23 March 1984 29 March 1984 30 March 1984	6S	7.6 7.4 7.0 6.3	61 66 59 67

Season 22 (1985)

The series moved back to once-weekly Saturday broadcasts. All episodes were 45 minutes long, though they also exist in 25-minute versions. Although there were now only 13 episodes in the season, the total running time remained approximately the same as in previous seasons since the episodes were almost twice as long.

Story	Serial	Title	Directed by	Written by	Original air date	Prod. code	UK viewers (millions) ^[8]	AI ^[8]
137	1	Attack of the Cybermen	Matthew Robinson	Paula Moore	5 January 1985 (1985-01-05) 12 January 1985	6T	8.9 7.2	61 65
138	2	Vengeance on Varos	Ron Jones	Philip Martin	19 January 1985 (1985-01-19) 26 January 1985	6V	7.2 7.0	63 65
139	3	The Mark of the Rani	Sarah Hellings	Pip and Jane Baker	2 February 1985 (1985-02-02) 9 February 1985	6X	6.3 7.3	64 64
140	4	The Two Doctors	Peter Moffatt	Robert Holmes	16 February 1985 (1985-02-16) 23 February 1985 2 March 1985	6W	6.6 6.0 6.9	65 62 65
141	5	Timelash	Pennant Roberts	Glen McCoy	9 March 1985 (1985-03-09) 16 March 1985	6Y	6.7 7.4	66 64
142	6	Revelation of the Daleks	Graeme Harper	Eric Saward	23 March 1985 (1985-03-23) 30 March 1985	6Z	7.4 7.7	67 65

Season 23 (1986)

The whole season is titled as The Trial of a Time Lord, and is split into four segments. The segments are commonly referred to by their respective novelisation's titles^[11] (listed below) but the season was broadcast as one fourteen-part story and these titles did not appear on screen. Episode length returned to 25 minutes, but with only fourteen episodes in the season, making the total running time of this season (and subsequent seasons) just over half of the previous seasons, going back to season 7. The season would see the departure of Peri, and the introduction of Bonnie Langford as companion, Mel Bush.

Story	Serial	Title	Directed by	Written by	Original air date	Prod. code	UK viewers (millions) ^[8]	AI ^[8]
143a	1	The Mysterious Planet	Nicholas Mallett	Robert Holmes	6 September 1986 (1986-09-06) 13 September 1986 20 September 1986 27 September 1986	7A	4.9 4.9 3.9 3.7	72 69 70 72
143b	2	Mindwarp	Ron Jones	Philip Martin	4 October 1986 (1986-10-04) 11 October 1986 18 October 1986 25 October 1986	7B	4.8 4.6 5.1 5.0	71 69 66 72
143c	3	Terror of the Vervoids	Chris Clough	Pip and Jane Baker	1 November 1986 (1986-11-01) 8 November 1986 15 November 1986 22 November 1986	7C	5.2 4.6 5.3 5.3	66 69 69 69
143d	4	The Ultimate Foe	Chris Clough	Robert Holmes Pip and Jane Baker	29 November 1986 (1986-11-29) 6 December 1986	7C	4.4 5.6	69 69

Seventh Doctor

The Seventh Doctor was portrayed by Sylvester McCoy.

Season 24 (1987)

This season was moved to a Monday schedule. Mel Bush would leave in Dragonfire, and the role of companion would be taken over by Sophie Aldred as Ace.

Story	Serial	Title	Directed by	Written by	Original air date	Prod. code	UK viewers (millions) ^[8]	AI ^[8]
144	1	Time and the Rani	Andrew Morgan	Pip and Jane Baker	7 September 1987 (1987-09-07) 14 September 1987 21 September 1987 28 September 1987	7D	5.1 4.2 4.3 4.9	58 63 57 59
145	2	Paradise Towers	Nicholas Mallett	Stephen Wyatt	5 October 1987 (1987-10-05) 12 October 1987 19 October 1987 26 October 1987	7E	4.5 5.2 5.0 5.0	61 58 58 57
146	3	Delta and the Bannermen	Chris Clough	Malcolm Kohll	2 November 1987 (1987-11-02) 9 November 1987 16 November 1987	7F	5.3 5.1 5.4	63 60 60
147	4	Dragonfire	Chris Clough	Ian Briggs	23 November 1987 (1987-11-23) 30 November 1987 7 December 1987	7G	5.5 5.0 4.7	61 61 64

Season 25 (1988–1989)

The series was moved to Wednesdays.

Story	Serial	Title	Directed by	Written by	Original air date	Prod. code	UK viewers (millions) ^[8]	AI ^[8]
148	1	Remembrance of the Daleks	Andrew Morgan	Ben Aaronovitch	5 October 1988 (1988-10-05) 12 October 1988 19 October 1988 26 October 1988	7H	5.5 5.8 5.1 5.0	68 69 70 72
149	2	The Happiness Patrol	Chris Clough	Graeme Curry	2 November 1988 (1988-11-02) 9 November 1988 16 November 1988	7L	5.3 4.6 5.3	67 65 65
150	3	Silver Nemesis	Chris Clough	Kevin Clarke	23 November 1988 (1988-11-23) 30 November 1988 7 December 1988^[13]	7K	6.1 5.2 5.2	71 70 70
151	4	The Greatest Show in the Galaxy	Alan Wareing	Stephen Wyatt	14 December 1988 (1988-12-14) 21 December 1988 28 December 1988 4 January 1989	7J	5.0 5.3 4.8 6.6	68 66 69 64

Season 26 (1989)

The final season continued to push the series towards a darker approach, focusing this time more on Ace's personal life as well as The Doctor's past and manipulations. This season set the tone for the Virgin New Adventures novels that followed.

Story	Serial	Title	Directed by	Written by	Original air date	Prod. code	UK viewers (millions) ^[8]	AI ^[8]
152	1	Battlefield	Michael Kerrigan	Ben Aaronovitch	6 September 1989 (1989-09-06) 13 September 1989 20 September 1989 27 September 1989	7N	3.1 3.9 3.6 4.0	69 68 67 65
153	2	Ghost Light	Alan Wareing	Marc Platt	4 October 1989 (1989-10-04) 11 October 1989 18 October 1989	7Q	4.2 4.0 4.0	68 68 64
154	3	The Curse of Fenric	Nicholas Mallett	Ian Briggs	25 October 1989 (1989-10-25) 1 November 1989 8 November 1989 15 November 1989	7M	4.3 4.0 4.0 4.2	67 68 68 68
155	4	Survival	Alan Wareing	Rona Munro	22 November 1989 (1989-11-22) 29 November 1989 6 December 1989	7P	5.0 4.8 5.0	69 69 71

Eighth Doctor

The Eighth Doctor was portrayed by Paul McGann. The movie is the only television appearance of this Doctor during his tenure. The only production title held by this story was Doctor Who. However, producer Philip Segal later suggested Enemy Within as an alternative title. Lacking any other specific name, many fans have adopted this to refer to the movie. Fan groups have also used other informal titles. The DVD release is titled Doctor Who: The Movie. In 2013, Paul McGann returned for the second television appearance of the Eighth Doctor in the minisode titled "The Night of the Doctor".

Television movie (1996)

Story	Episode	Title	Directed by	Written by	Original air date	Prod. code	UK viewers (millions) ^[8]	AI ^[8]
156	—	Doctor Who	Geoffrey Sax	Matthew Jacobs	12 May 1996 (1996-05-12) (Canada) 14 May 1996 (USA) 27 May 1996 (UK)	TVM ^{[note 1]}	9.08	75

↑ "TVM" is used in the BBC's online episode guide.^[14] The actual code used during production is 50/LDX071Y/01X.^[15] Doctor Who Magazine's "Complete Eighth Doctor Special" gives the production code as #83705.^[16] Big Finish Productions uses the code 8A, and numbers its subsequent Eighth Doctor stories correspondingly.

References

Sources

↑ "Dr Who 'longest-running sci-fi'". BBC. 28 September 2006. Retrieved 15 December 2007.
↑ Howe, David J.; Walker, Stephen James (2003) [1998]. "The Trial of a Time Lord: 1–4 : Details". Doctor Who: The Television Companion (Doctor Who website). BBC. Retrieved 27 October 2007.
↑ Cornell, Paul; Day, Martin; Topping, Keith (1995). "The Five Doctors: Details". Doctor Who: The Discontinuity Guide. BBC Doctor Who website. Retrieved 27 October 2007.
↑ Spilsbury, Tom (22 April 2009). "The Mighty 200!". Doctor Who Magazine. Royal Tunbridge Wells, Kent: Panini Comics (407): 26–29.
↑ Jeffery, Morgan (19 July 2017). "Exclusive: Doctor Who series 11 won't feature any two-part stories". DigitalSpy. Retrieved 20 July 2018.
↑ "Doctor Who: Bradley Walsh among new cast members". BBC News. 22 October 2017. Retrieved 23 October 2017.
↑ "Doctor Who: Bradley Walsh among new cast members". BBC News. 22 October 2017. Retrieved 23 October 2017.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 "Ratings Guide". Doctor Who News. Retrieved 27 December 2014.
↑ "Tom Baker". BBC Doctor Who website. 12 August 2004. Archived from the original on 29 December 2008. Retrieved 23 April 2013.
↑ The Five Doctors was first broadcast in the United States on 23 November 1983, the actual date of the programme's 20th anniversary.
↑ "Doctor Who – Classic Series – Episode Guide – Second Doctor Index". BBC. Retrieved 18 May 2011.
↑ Sullivan, Shannon (7 August 2007). "Silver Nemesis". A Brief History of Time Travel. Retrieved 30 August 2008.
↑ Parts Two and Three of Silver Nemesis were first broadcast in New Zealand on 25 November 1988 as part of a compilation broadcast before their UK transmission.^[12]
↑ Howe, David J.; Walker, Stephen James. "The TV Movie: Details". Doctor Who: The Television Companion (Doctor Who website). BBC. Retrieved 26 July 2007.
↑ Segal, Philip; Russell, Gary (2000). Doctor Who: Regeneration. Harper Collins Entertainment. ISBN 0-00-710591-6.
↑ "The DWM Archive: Doctor Who (1996) – In Production". Doctor Who Magazine Special Edition (5). 3 September 2003. p. 69. ISSN 0957-9818.

General websites

"Episode Guide". Doctor Who Classic series. BBC.
Shaun Lyon, David Hancock; et al. "The Canon Keeper's Guide to Doctor Who". Outpost Gallifrey. Archived from the original on 8 July 2009.
Shaun Lyon; et al. "Doctor Who episode guide". Outpost Gallifrey. Archived from the original on 8 July 2009.
Boies, Dominique. "Doctor Who reference guide". Archived from the original on 5 February 2015.
Sullivan, Shannon Patrick. "A Brief History of Time (Travel)".

External links

BBC Classic Series Episode Guide
BBC Episode Guide (Classic and New Series)
Doctor Who Reference Guide – detailed descriptions of all televised episodes, plus spin-off audio, video, and literary works.
Doctor Who (1963–1989) on IMDb
Doctor Who (1996) on IMDb
Doctor Who (2005–) on IMDb

This article is issued from Wikipedia. The text is licensed under Creative Commons - Attribution - Sharealike. Additional terms may apply for the media files.

[overview1-5] The First Doctor remained for the first two serials of season 4. The Second Doctor featured for the remainder of the season from the third serial, The Power of the Daleks.

[overview2-6] Also known by its subtitle, The Key to Time.

[overview3-7] Shada was left unfinished due to a strike. The story was later completed and officially released on home media in 2017. The voices of the original actors with new animation was incorporated to bridge the gaps between the recorded live-action segments. It is not included in the episode or story counts as it was not broadcast.

[overview4-8] The Fifth Doctor regenerated in the sixth serial of season 21. The Sixth Doctor featured only in the final serial, The Twin Dilemma.

[overview5-9] Also known by its subtitle, The Trial of a Time Lord.

[shada-15] 1 2 Shada was left unfinished due to a strike. Its recorded footage was later released on home video using linking narration by Tom Baker to complete the story. It is not included in the episode or story counts as it was not broadcast.

[TVM-23] "TVM" is used in the BBC's online episode guide.^[14] The actual code used during production is 50/LDX071Y/01X.^[15] Doctor Who Magazine's "Complete Eighth Doctor Special" gives the production code as #83705.^[16] Big Finish Productions uses the code 8A, and numbers its subsequent Eighth Doctor stories correspondingly.

[record-1] "Dr Who 'longest-running sci-fi'". BBC. 28 September 2006. Retrieved 15 December 2007.

[2] Howe, David J.; Walker, Stephen James (2003) [1998]. "The Trial of a Time Lord: 1–4 : Details". Doctor Who: The Television Companion (Doctor Who website). BBC. Retrieved 27 October 2007.

[3] Cornell, Paul; Day, Martin; Topping, Keith (1995). "The Five Doctors: Details". Doctor Who: The Discontinuity Guide. BBC Doctor Who website. Retrieved 27 October 2007.

[4] Spilsbury, Tom (22 April 2009). "The Mighty 200!". Doctor Who Magazine. Royal Tunbridge Wells, Kent: Panini Comics (407): 26–29.

[10] Jeffery, Morgan (19 July 2017). "Exclusive: Doctor Who series 11 won't feature any two-part stories". DigitalSpy. Retrieved 20 July 2018.

[11] "Doctor Who: Bradley Walsh among new cast members". BBC News. 22 October 2017. Retrieved 23 October 2017.

[12] "Doctor Who: Bradley Walsh among new cast members". BBC News. 22 October 2017. Retrieved 23 October 2017.

[AllRatings-13] 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 "Ratings Guide". Doctor Who News. Retrieved 27 December 2014.

[14] "Tom Baker". BBC Doctor Who website. 12 August 2004. Archived from the original on 29 December 2008. Retrieved 23 April 2013.

[16] The Five Doctors was first broadcast in the United States on 23 November 1983, the actual date of the programme's 20th anniversary.

[17] "Doctor Who – Classic Series – Episode Guide – Second Doctor Index". BBC. Retrieved 18 May 2011.

[18] Sullivan, Shannon (7 August 2007). "Silver Nemesis". A Brief History of Time Travel. Retrieved 30 August 2008.

[19] Parts Two and Three of Silver Nemesis were first broadcast in New Zealand on 25 November 1988 as part of a compilation broadcast before their UK transmission.^[12]

[movie-20] Howe, David J.; Walker, Stephen James. "The TV Movie: Details". Doctor Who: The Television Companion (Doctor Who website). BBC. Retrieved 26 July 2007.

[regeneration-21] Segal, Philip; Russell, Gary (2000). Doctor Who: Regeneration. Harper Collins Entertainment. ISBN 0-00-710591-6.

[Complete_Eighth_Doctor-22] "The DWM Archive: Doctor Who (1996) – In Production". Doctor Who Magazine Special Edition (5). 3 September 2003. p. 69. ISSN 0957-9818.

†