4 September (production)


 * 1964 - The original version of "Crisis" was recorded at BBC Television Centre Studio 4. (INFO: "Crisis")
 * 1967 - Location filming for The Abominable Snowmen began in Wales. (TCH 11)
 * 1968 - Location filming for The Invasion continued. (TCH 13)
 * 1981 - Location filming for Castrovalva took place. (REF: Doctor Who The Handbook: The Fifth Doctor)
 * 1969 - Tailor Arthur Davey made finishing touches to his 27 August Third Doctor costume.
 * 1999 - The Big Finish audio story The Fearmonger was recorded.
 * 2005 - Big Finish's Iris Wildthyme audio story Wildthyme at Large was recorded at the Moat Studios.
 * 2012 - The Big Finish audio story The Seeds of War was recorded at the Moat Studios.
 * 2013 - The Big Finish audio story The Age of Endurance was recorded at the Moat Studios.
 * 2014 - The Big Finish audio story The Secret History was recorded at the Moat Studios.
 * 2017 - The Big Finish audio stories The Siege of Big Ben and Flight Into Hull! were recorded at the Moat Studios.
 * 2017 - Big Finish confirmed Jacob Dudman would be narrating the box sets The Tenth Doctor Chronicles and The Eleventh Doctor Chronicles.
 * 2020 - The Big Finish audio story The Blazing Hour was recorded.