25 March (production)


 * 1966 - "The Hall of Dolls" was recorded at Riverside Studios 1. (TCH 7)
 * 1967 - Episode four of The Macra Terror was recorded at Lime Grove Studios D. (TCH 10)
 * 1969 - Location filming for The War Games continued at Sheepcote Valley Rubbish Tip. (TCH 14)
 * 1979 - Pre-filming for The Creature from the Pit took place at Ealing Studios. (REF: Doctor Who The Handbook: The Fourth Doctor)
 * 2009 - The Big Finish audio Paper Cuts took place at the Moat Studios.
 * 2015 - Filming began on The Girl Who Died.
 * 2019 - Big Finish's audio anthology The Eighth Doctor: Time War: Volume Three was recorded.
 * 2021 - The BBC announced the two-part anthology The Essential Terrance Dicks.
 * 2021 - Big Finish announced the audio story The God of Phantoms.
 * 2022 - Big Finish announced the Master! audio anthology Nemesis Express, including the return of the Chronovores.