27 July (production)


 * 1988 - Studio filming for The Happiness Patrol took place at BBC Television Centre Studio 3. (Doctor Who The Handbook: The Seventh Doctor)
 * 1994 - Writer John Leekley revised his 15 July story proposal for the 1996 TV movie, drawing on it. The main changes he'd made to the storyline was the elimination of the so-called "Cybs", and the addition of a new character: Castellan Kelner, the Master's henchman. He later submitted his first draft on 24 August.
 * 2007 - Recording for The Mind's Eye, Mission of the Viyrans and The Bride of Peladon took place at The Moat Studios.
 * 2015 - Recording for The Churchill Years: Volume One took place at The Moat Studios.
 * 2017 - Recording for Serpent in the Silver Mask took place at The Moat Studios.