On 23 March, the following important behind-the-scenes events were known to have occurred:
- 1968 - Episode five of Fury from the Deep was recorded at Lime Grove Studios D. (TCH 12)
- 1969 - Location filming for The War Games began at Sheepcote Valley Rubbish Tip. (TCH 14)
- 2008 - Responding to criticism from his correspondent Benjamin Cook, Russell T Davies agreed to change the ending of Journey's End, removing a planned cliffhanger to lead into The Next Doctor.
- 2009 - Recording for Paper Cuts took place at The Moat Studios.
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