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
Doctor Who: Thirty Years in the TARDIS programme's fiftieth anniversary in 2013, when the one-off special "An Adventure in Space and Time" was broadcast on BBC Two. Doctor Who: Thirty Years in the TARDIS Doctor Who: Thirty Years in the TARDIS is a one-off, 50-minute television documentary, broadcast to celebrate the thirtieth anniversary of the science-fiction series "Doctor Who". It was originally transmitted on Monday 29 November 1993, on BBC One (BBC Two in Scotland). The programme was the first BBC-produced, in-depth documentary chronicling "Doctor Who" since the earlier "Whose Doctor Who" was broadcast in April 1977, although a thirty-minute, categorized compilation of archive clips had been