Survival is the final serial of the 26th season of the British science fiction television series Doctor Who, which was first broadcast in three weekly parts on BBC1 from 22 November to 6 December 1989. It is also the final story of the series' original 26-year run; it did not return regularly until 2005. It marks the final regular television appearances of Sylvester McCoy as the Seventh Doctor and Sophie Aldred as Ace, and is also the final appearance of Anthony Ainley as the Master, the latter appearing alongside McCoy's Doctor for the only time.