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 13 December, the following important behind-the-scenes events were known to have occurred:
- 1966 - Location filming for The Underwater Menace concluded at Winspit Quarry. (TCH 9)
- 1968
- Episode four of The Krotons was recorded at Lime Grove Studios D. (TCH 13)
- Model filming for The Seeds of Death began on Stage 2 of Ealing Studios. (TCH 14)
- 1971 - Studio filming for The Sea Devils took place at BBC Television Centre studio 8. (REF: Doctor Who The Handbook: The Third Doctor)
- 1976 - Location filming for The Talons of Weng-Chiang took place. (REF: Doctor Who The Handbook: The Fourth Doctor)
- 1977 - OB filming for The Invasion of Time took place. (REF: Doctor Who The Handbook: The Fourth Doctor)
- 2007 - The Big Finish audio story The Haunting of Thomas Brewster was recorded at the Moat Studios.
- 2010 - The Big Finish audio story Rat Trap was recorded at the Moat Studios.
- 2011 - The Big Finish audio story Dominion was recorded at the Moat Studios.
- 2019
- Big Finish's audio anthology Stranded 1 was recorded.
- Big Finish announced the Master's 50th anniversary story Masterful, scheduled to be released in January 2021.
- 2021
- Big Finish announced the winning entry of that year's Paul Spragg Memorial Short Trip Opportunity, a Ninth Doctor audiobook entitled The Lichyrwick Abomination.
- Big Finish's Master! audio anthology Nemesis Express was recorded.