21 October (production)


 * 1967 - Episode one of The Ice Warriors was recorded at Lime Grove Studios D. (TCH 11)
 * 1969 - Location filming for Spearhead from Space took place. (REF: Doctor Who The Handbook: The Third Doctor)
 * 1971 - Location filming for The Sea Devils took place. (REF: Doctor Who The Handbook: The Third Doctor)
 * 2008 - Recording for The Scapegoat took place at The Moat Studios.
 * 2010 - Recording for The Selachian Gambit took place at The Moat Studios.
 * 2015 - Recording for Time Reaver took place at the Moat Studios.
 * 2020 - Big Finish's audio anthology The Third Doctor Adventures: Volume Seven was recorded.