Sonic screwdrivers can't create pages instantly.
This article about a day of the year is currently under construction. It's likely to be a bit messy.
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On 20 November, the following important behind-the-scenes events were known to have occurred:
- 1969 - Location filming for Doctor Who and the Silurians took place. (REF: Doctor Who The Handbook: The Third Doctor)
- 1974 - Location filming for Revenge of the Cybermen took place at Wookey Hole Caves. (REF: Doctor Who The Handbook: The Fourth Doctor)
- 1978 - Studio filming for The Armageddon Factor took place at BBC Television Centre studio 3. (REF: Doctor Who The Handbook: The Fourth Doctor)
- 1979 - Studio filming for Shada was planned to took place at BBC Television Centre studio 6. However, the fallout of a BBC strike prevented this from happening. (REF: Doctor Who The Handbook: The Fourth Doctor)
- 1984 - Studio filming for The Mark of the Rani took place at BBC Television Centre studio 1. (REF: Doctor Who The Handbook: The Sixth Doctor)
- 1999 - The Big Finish audio story Red Dawn was recorded at the Nu Groove Studios.
- 2005 - The Big Finish audio story The Kingmaker was recorded at the Moat Studios.
- 2013 - The first series of Big Finish's Doctor Who spin-off Charlotte Pollard was recorded at the Moat Studios.
- 2014 - The Big Finish audio story The Isos Network was recorded at the Moat Studios.
- 2018 - Big Finish's Gallifrey audio anthology Time War: Volume Three was recorded.
- 2020
- Big Finish's The War Doctor Begins audio anthology Warbringer was recorded remotely.
- Big Finish's audio anthology The Lone Centurion: Volume Two was recorded.