9 September (production)


 * 1967 - Location filming for The Abominable Snowmen concluded in Wales. (TCH 11)
 * 1968 - Location filming for The Invasion continued. (TCH 13)
 * 2005 - Doctor Who Magazine attended a production meeting on Tooth and Claw. (DWMSE 14)
 * 2011 - Recording for The Fourth Doctor Box Set took place at Audio Sorcery.
 * 2016 - Recording for Before the Fall took place at The Moat Studios.