9 June 1950: birth of David Troughton, son of Second Doctor Patrick Troughton, who played Private Moor in The War Games (Second Doctor, 1969), King Peladon in The Curse of Peladon (Third Doctor, 1972) and Professor Hobbes in Midnight (Tenth Doctor, 2008) as well as the Black Guardian for Big Finish and the Second Doctor for the Serpent's Crest series.
ii) broadcast anniversaries
9 June 1973: broadcast of fourth episode of The Green Death. Mike Yates and the Doctor go undercover to penetrate Global Chemicals.
9 June 2007: broadcast of Blink. The Doctor and Martha try to escape the Weeping Angels by sending messages to Sally Sparrow in DVD Easter Eggs from 1969. The single best episode of New Who in my humble opinion.