This article about a day of the year is currently under construction. It's likely to be a bit messy.
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)
- 1968 - Model filming for The Seeds of Death began on Stage 2 of Ealing Studios. (TCH 14)
- 2003 - Recording for Death and the Daleks took place.
- 2007 - Recording for The Haunting of Thomas Brewster took place at The Moat Studios.
- 2010 - Recording for Rat Trap took place at The Moat Studios.
- 2011 - Recording for Dominion took place at The Moat Studios.
- 2019 - Recording for Stranded 1 took place at the Moat Studios.