Planet of the Daleks is the fourth serial of the tenth season of the British science fiction television series Doctor Who, which was first broadcast in six weekly parts on BBC1 from 7 April to 12 May 1973.
The War Games is the seventh and final serial of the sixth season of the British science fiction television series Doctor Who, which originally aired in ten weekly parts from 19 April to 21 June 1969.
Doctor Who and the Silurians is the second serial of the seventh season in the British science fiction television series Doctor Who. It was first broadcast in seven weekly parts on BBC1 from 31 January to 14 March 1970.
Day of the Daleks is the first serial of the ninth season of the British science fiction television series Doctor Who, which was first broadcast in four weekly parts from 1 to 22 January 1972. It was the first of four Third Doctor serials to feature the Daleks, which returned to the series for the first time since The Evil of the Daleks (1967).
The Curse of Peladon is the second serial of the ninth season of the British science fiction television series Doctor Who, which was first broadcast in four weekly parts on BBC1 from 29 January to 19 February 1972.
The Third Doctor is an incarnation of the Doctor, the protagonist of the British science fiction television series Doctor Who. He was portrayed by actor Jon Pertwee. Within the series' narrative, the Doctor is a centuries-old alien Time Lord from the planet Gallifrey who travels in time and space in the TARDIS, frequently with companions. At the end of life, the Doctor regenerates. Consequently, both the physical appearance and personality of the Doctor changes. Preceded in regeneration by the Second Doctor, he is followed by the Fourth Doctor.
Several portions of the long-running British science-fiction television programme Doctor Who are no longer held by the BBC. Between 1967 and 1978, the BBC routinely deleted archive programmes for various practical reasons—lack of space, scarcity of materials, and a lack of rebroadcast rights. As a result, 97 of 253 episodes from the programme's first six years are currently missing, primarily from Seasons 3, 4 and 5, leaving 26 serials incomplete. Many more were considered lost until recovered from various sources, mostly overseas broadcasters.
Death to the Daleks is the third serial of the 11th season of the British science fiction television series Doctor Who, which was first broadcast in four weekly parts on BBC1 from 23 February to 16 March 1974.
The Monster of Peladon is the fourth serial of the 11th season of the British science fiction television series Doctor Who, which was first broadcast in six weekly parts on BBC1 from 23 March to 27 April 1974. It was Jon Pertwee's penultimate serial as the Third Doctor.
The seventeenth season of British science fiction television series Doctor Who began on 1 September 1979 with the story Destiny of the Daleks, and ended with The Horns of Nimon. This was Graham Williams' final series producing Doctor Who. The script editor was Douglas Adams.
The twelfth season of British science fiction television series Doctor Who began on 28 December 1974 with Tom Baker's first serial Robot, and ended with Revenge of the Cybermen on 10 May 1975.
The eleventh season of British science fiction television series Doctor Who began on 15 December 1973 with the serial The Time Warrior, and ended with Jon Pertwee's final serial Planet of the Spiders. The season's writing was recognized by the Writer's Guild of Great Britain for Best Children's Drama Script. This is the Third Doctor's fifth and final series, and also the last consecutively to be produced by Barry Letts and script edited by Terrance Dicks. Both Letts and Dicks would work for the programme again, however - Letts in Season 18 and Dicks on future stories, e.g. Horror of Fang Rock.
The tenth season of British science fiction television series Doctor Who began on 30 December 1972 with the tenth anniversary special The Three Doctors, and ended with Katy Manning's final serial The Green Death. This is the Third Doctor's fourth series, as well as fourth for producer Barry Letts and script editor Terrance Dicks.
The eighth season of British science fiction television series Doctor Who began on 2 January 1971 with Terror of the Autons and ended with The Dæmons featuring Jon Pertwee as the Third Doctor. This is the second of five series which Barry Letts produced consecutively and Terrance Dicks was the script editor.
The seventh season of British science fiction television series Doctor Who began on 3 January 1970 with Jon Pertwee's first story Spearhead from Space and ended with Inferno. The first season to be made in colour, it marked the beginning of Barry Letts's five seasons as series producer, but it has been described as "essentially devised" by his predecessor, Derrick Sherwin, who produced the opening story. The season sees the beginning of the Doctor's exile to Earth by the Time Lords and his attachment to UNIT as its scientific advisor.
The sixth season of British science fiction television series Doctor Who began on 10 August 1968 with the first story of season 6 The Dominators and ended Patrick Troughton's reign as the Doctor with its final story The War Games. Only 37 out of 44 episodes are held in the BBC archives; 7 remain missing. As a result, 2 serials are incomplete: only episode 2 of the 6-part story The Space Pirates still exists, while The Invasion has had its two missing episodes reconstructed using animation.
The fifth season of British science fiction television series Doctor Who began on 2 September 1967 with the first story of season 5 The Tomb of the Cybermen and ended on 1 June 1968 with The Wheel in Space. Only 22 out of 40 episodes are held in the BBC archives; 18 remain missing. As a result, only 2 serials exist entirely. However, The Abominable Snowmen, The Ice Warriors, The Web of Fear, and Fury from the Deep have had their missing episodes reconstructed using animation.
The third season of British science fiction television series Doctor Who began on 11 September 1965 with the story Galaxy 4 and ended on 16 July 1966 with The War Machines. Only 17 out of 45 episodes survive in the BBC archives; 28 remain missing. As a result, only three serials are complete.
