17th September 1972: death of Peter Stephens, who played Cyril, the Kitchen Boy, and the Knave of Hearts in The Celestial Toymaker (1966), and Lolem the high priest in The Underwater Menace (1967).
ii) broadcast anniversaries
17th September 1966: broadcast of third episode of The Smugglers. Ben and Polly use witchcraft to escape the villagers, but are recaptured; the Doctor fails to escape the pirates.
17th September 1977: broadcast of third episode of Horror of Fang Rock. People start dying; Reuben starts glowing; and the Doctor admits to Leela that he has locked the enemy in rather than out.
17th September 1993: broadcast of fourth episode of The Paradise of Death on BBC radio. Some very weird stuff with tame giant bats.