7 April (production)


 * 1987 - Location filming for Time and the Rani took place. (Doctor Who The Handbook: The Seventh Doctor)
 * 1988 - Location filming for Remembrance of the Daleks took place. (Doctor Who The Handbook: The Seventh Doctor)
 * 2000 - Recording for The Extinction Event took place.
 * 2006 - Recording for Red took place at The Moat Studios.
 * 2011 - Recording for Army of Death took place at The Moat Studios.
 * 2014 - Recording for The Fate of Krelos / Return to Telos at Audio Sorcery.
 * 2020 - Big Finish announced the audio box set Wicked Sisters.