This article about a day of the year is currently under construction. It's likely to be a bit messy.
On 11 April, the following important behind-the-scenes events were known to have occurred:
- 1967 - The model filming for The Faceless Ones was remounted on Stage 3A of Ealing Studios. (TCH 10)
- 1969 - Episode one of The War Games was recorded at BBC Television Centre Studio 4. (TCH 14)
- 2011 - Recording for The Silver Turk took place at The Moat Studios.
- 2012 - Recording for The Dark Planet took place at The Moat Studios.
- 2016 - Recording for How to Win Planets and Influence People took place at The Moat Studios.
- 2019 - Recording for Anti-Genesis took place at the Moat Studios.