October (production)

* 1978 - Pre-filming for The Armageddon Factor took place at Ealing Studios. (REF: Doctor Who The Handbook: The Fourth Doctor)
*2005 - Post production company The Mill worked on The Christmas Invasion. (DWMSE 14)
* 2005 - By the end of October, Parallel World Part 1 had been renamed Rise of the Cybermen. Part 2 was not renamed The Age of Steel until some time later. (DWMSE 14)
* 2020 - Big Finish's The War Master audio anthology Self-Defence was recorded.