28 May (production)


 * 1964 - The BBC's Director of Television, Kenneth Adam, sent a memo to his Controller of Programmes for Television, which soon went down the chain through Sydney Newman to Donald Wilson, and ended up on the desks of producer Verity Lambert and story editor David Whitaker. The concern from on high? Even Adam's 3½-year-old granddaughter knew that it was "stupid" of the First Doctor and his companions to separate in a dangerous situation, such as they did in last Saturday's episode. Adam wanted the production team to "exercise more discipline" in the writing so that the programme's stars don't act like idiots. Otherwise, he feared that the programme's longevity will be at risk.
 * 1965 - "The Death of Doctor Who" was recorded at Riverside Studios 1. (TCH 5)
 * 1973 - Studio filming for The Time Warrior took place at BBC Television Centre studio 6. (REF: Doctor Who The Handbook: The Third Doctor)
 * 1986 - Studio filming for Mindwarp took place at BBC Television Centre studio 1. (REF: Doctor Who The Handbook: The Sixth Doctor)
 * 2013 - The Big Finish audio story 1963: The Space Race was recorded at The Moat Studios.
 * 2014 - The Big Finish audio story for The Rani Elite was recorded at the Moat Studios.
 * 2015 - Big Finish announced the second series of The Early Adventures range. Elliot Chapman was confirmed to have been cast as Ben Jackson, inheriting the role from the late Michael Craze.
 * 2015 - Read-through for Face the Raven took place.
 * 2018 - Big Finish's Torchwood: The Story Continues audio anthology God Among Us 1 was recorded.
 * 2019 - The Big Finish audio story Peace in Our Time was recorded at WiseBuddah.