The Doctor (Doctor Who) footage. Tom Baker did reappear, but as "the Curator", an ambiguously different character who he was not credited for playing. A voice actor, John Guilor, recorded a line of audio impersonating the First Doctor, for which he was credited as "Voice Over Artist". In other multi-Doctor stories, the multiple actors are all credited as "The Doctor", the exception being "The Three Doctors" (1972–73), which credited William Hartnell, Patrick Troughton and Jon Pertwee as "Doctor Who" as the 1972 serial preceded the practice of crediting the character as "The Doctor". In "Human Nature" (2007), the plot involves the Tenth Doctor altering
An Adventure in Space and Time of Castamere". "An Adventure in Space and Time" was released on DVD on 2 December 2013 in the UK. A 3 disc Blu-ray set was released in the US and Canada 27 May 2014. The set includes the feature on Blu-ray, DVD and An Unearthly Child DVD. The special was re-released on DVD and Blu-ray on 8 September 2014 as part of a "50th Anniversary Collectors Boxset" alongside "The Name of the Doctor", "The Night of the Doctor", "The Day of the Doctor", "The Time of the Doctor" and "The Five(ish) Doctors Reboot". Edmund Butt's score was released by Silva