21 April (production)


 * 1967 - Location filming The Evil of the Daleks continued in Ealing and Shepherd's Bush. (TCH 10)
 * 1987 - Studio filming for Time and the Rani took place at BBC Television Centre Studio 8. (Doctor Who The Handbook: The Seventh Doctor)
 * 2001 - Recording for Dust Breeding took place at The Moat Studios.
 * 2002 - Recording for The Rapture took place at The Moat Studios.
 * 2004 - Recording for The Juggernauts took place at The Moat Studios.
 * 2005 - David Tennant spent "a couple of hours" recording his first scene as the Tenth Doctor on the set of the TARDIS, which would be edited into The Parting of the Ways with Billie Piper. (DWMSE 14)
 * 2008 - Recording for The Destroyer of Delights took place at The Moat Studios.
 * 2010 - Recording for Animal took place at The Moat Studios.
 * 2011 - Recording for Power Play took place at The Moat Studios.
 * 2020 - Recording for Echoes of Extinction took place remotely.
 * 2021 - Big Finish's audio anthology The Third Doctor Adventures: Volume Eight was recorded.