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As a newly-regenerated Doctor crashes to Earth, so do a shower of meteorites, sparking off a chain of strange events in the countryside. Brigadier Lethbridge-Stewart is called in, along with UNIT's newest recruit, Dr Liz Shaw... the Brigadier needs the Doctor. But the Doctor is not the man he was...
For each episode, the title zooms up to the audience.
For the first time on the end titles, the Doctor is credited as "Doctor Who" rather than "Dr. Who".
For the first time, the end credits are superimposed against the title sequence backdrop rather than being rolled up against a black screen.
From this episode onwards, the series was produced in colour.
Autons created by Robert Holmes.
In 2006 this episode was released by The Sun free along with Robots of Death Part 1, Earthshock Part 1, The Faceless Ones Part 1, A Day of Armageddon and Rose.
This epiosde marks the first appearances of The Doctor, Liz Shaw, The Autons and the Nestene Consciousness.
Story Working title: Facsimilie
This episode attracted 8.4 million viewers on initial broadcast.