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.