9 May 1940: birth of John Black, who directed The Keeper of Traken (1981), K9 and Company (1981) and Four to Doomsday (1982).
ii) broadcast anniversaries
9 May 1964: broadcast of "Sentence of Death", the fifth episode of the story we now call The Keys of Marinus. Ian is accused of murder, and the Doctor is his defence lawyer.
9 May 1970: broadcast of first episode of Inferno. The Doctor is tapping energy from the controversial Inferno project; meanwhile people contaminated by subterranean gas are turning into monsters.
9 May 2003: webcast of second episode of Shada. The Doctor examines the mysterious book from Professor Chronotis' laboratory.