24 June 1985: death of Valentine Dyall, who played the Black Guardian in The Armageddon Factor (1979), Mawdryn Undead, Terminus, and Enlightenment (all 1982).
ii) broadcast anniversaries
24 June 1967: broadcast of sixth episode of The Evil of the Daleks. Everyone is brought to Skaro, where the Emperor Dalek instructs the Doctor to transform humanity into Daleks.
24 June 1972: broadcast of sixth episode of The Time Monster, ending Season 9 of Old Who. The Doctor defeats the Master, but persuades Kronos to spare his life; Atlantis is destroyed.
24 June 2006: broadcast of Fear Her. The Doctor finds the alien Isolus in a child’s drawings, and he and Rose deal with it using the 2012 Olympic flame.
The book was published in 1956 and the film’s been repeated far more often on TV than that Doctor Who series. 🙂
It’s a big world; plenty of room for all our theories.