episode of Doctor Who for some time, and possibly the last ever, the show's producer John Nathan-Turner decided close to transmission that a more suitable conclusion should be given to the final episode. To this end, script editor Andrew Cartmel wrote a short, melancholic closing monologue for actor Sylvester McCoy, which McCoy recorded on 23 November 1989, the day after episode one was broadcast and, by coincidence, the show's twenty-sixth anniversary: "There are worlds out there where the sky is burning, the sea's asleep, and the rivers dream. People made of smoke, and cities made of song. Somewhere there's danger, somewhere there’s injustice, and somewhere else the tea's getting cold. Come on, Ace – we've got work to do!" This was dubbed over the closing scene as the Doctor and Ace walked off into the distance, apparently to further adventures. Although Survival was the last Doctor Who serial of the original series to be transmitted, it was not the last to have been produced; that was Ghost Light, which had been broadcast some weeks earlier, as the antepenultimate story of the original run. The Doctor Who production office at the BBC finally closed down in August 1990, having been in continuous operation since 1963. This story is the last to feature Anthony Ainley as the Master. Ainley was not asked to return as the Master for the 1996 Doctor Who television movie. Instead, Gordon Tipple was cast as the Master for the prologue and Eric Roberts played the Master for the rest of the movie. Ainley reprised the role of the Master for the 1997 computer game Destiny of the Doctors. He continued to be active in Doctor Who, attending conventions and recording a commentary track for the DVD of the 1981 serial The Keeper of Traken. Ainley died in May 2004. McCoy and Aldred would reprise their roles onscreen on a number of occasions: first in a 1990 episode of the educational series Search Out Science; and again in 1993, along with many other former Doctor Who actors, for the Children in Need special Dimensions in Time. McCoy would briefly return to the role for the 1996 Doctor Who television movie which saw the Seventh Doctor regenerate into the Eighth Doctor, played by Paul McGann, and once more in 2021 for a webcast trailer promoting the blu-ray release of Season 24 alongside Bonnie Langford as Mel Bush. Had the