Doomwatch: Fire And Brimstone
BBC1 airs the 27th episode of Doomwatch, opening the show’s third season and adding new cast member Elizabeth Weaver. This episode, featuring Jonathan Pryce in a minor guest-starring role, no longer exists in the BBC’s archives.
Doomwatch: High Mountain
BBC1 airs the 28th episode of Doomwatch. This episode no longer exists in the BBC’s archives.
Doomwatch: Spectre At The Feast
BBC1 airs the ninth episode of Doomwatch. This episode, guest starring Richard Hurndall (Doctor Who: The Five Doctors), no longer exists in the BBC’s archives.
Doomwatch: Re-Entry Forbidden
BBC1 airs the sixth episode of the science fiction series Doomwatch, created by former Doctor Who writers Kit Pedler and Gerry Davis. 
Doomwatch: Project Sahara
BBC1 airs the fifth episode of the science fiction series Doomwatch, created by former Doctor Who writers Kit Pedler and Gerry Davis. Davis writes this episode, but in a very rare occurrence, goes uncredited on screen.
Doomwatch: Tomorrow, The Rat
BBC1 airs the fourth episode of the science fiction series Doomwatch, created by former Doctor Who writers Kit Pedler and Gerry Davis and written by future Survivors producer Terence Dudley.
Doomwatch: Burial At Sea
BBC1 airs the third episode of Doomwatch. This episode, written by former Doctor Who script editor Dennis Spooner, no longer exists in the BBC’s archives.
Doomwatch: Friday’s Child
BBC1 airs the second episode of Doomwatch. This episode no longer exists in the BBC’s archives.
Doomwatch: The Plastic Eaters
The first episode of the science fiction series Doomwatch premieres on BBC1, created and written by former Doctor Who writers Kit Pedler and Gerry Davis. Hear about it on the Sci-Fi 5 podcast
Doctor Who: The Tenth Planet, Part 3
The 133rd episode of Doctor Who airs on the BBC. This is the first story to feature the Cybermen, and is the final story of William Hartnell’s tenure as the first Doctor.
Quatermass: State Of Emergency
The BBC airs the sixth episode of Nigel Kneale’s trend-setting science fiction series The Quatermass Experiment, bringing the six-part story to a close. The success of the series prompts the BBC to request a sequel series from Kneale. This episode was not archived and does not exist in the BBC’s archives.
Quatermass: An Unidentified Species
The BBC airs the fifth episode of Nigel Kneale’s trend-setting science fiction series The Quatermass Experiment, starring Reginald Tate as Prof. Bernard Quatermass. This episode was not archived and does not exist in the BBC’s archives.
Quatermass: Believed To Be Suffering
The BBC airs the fourth episode of Nigel Kneale’s trend-setting science fiction series The Quatermass Experiment, starring Reginald Tate as Prof. Bernard Quatermass. This episode was not archived and does not exist in the BBC’s archives.
Quatermass: Very Special Knowledge
The BBC airs the third episode of Nigel Kneale’s trend-setting science fiction series The Quatermass Experiment, starring Reginald Tate as Prof. Bernard Quatermass. This episode was not archived and does not exist in the BBC’s archives.
The Quatermess Experiment: Persons Reported Missing
The BBC airs the second episode of Nigel Kneale’s trend-setting science fiction series The Quatermass Experiment, starring Reginald Tate as Prof. Bernard Quatermass. Broadcast as a live play with minimal footage from other sources played back during air, this is one of the earliest BBC drama productions archived on film, though BBC technicians opt not to preserve any further episodes of this series.
The Quatermass Experiment: Contact Has Been Established
The BBC airs the first episode of Nigel Kneale’s trend-setting science fiction series The Quatermass Experiment, starring Reginald Tate as Prof. Bernard Quatermass. Broadcast as a live play with minimal footage from other sources played back during air, this is also one of the earliest BBC drama productions archived on film, and one of the final drama productions to use the BBC’s vintage 1930s Alexandra Palace facilities.