broadcast anniversaries

18 March 1967: broadcast of second episode of The Macra Terror. Ben is brainwashed by the secret rulers of the camp; he and Polly encounter a Macra, but he denies it has happened.

18 March 1972: broadcast of fourth episode of The Sea Devils. The Doctor and the Master arrive separately at the Sea Devils' lair and try to negotiate with them.

18 March 2010: broadcast of Space, Time, and The Doctor Drops In, three mini-episodes. (Space and Time are very funny, watched together.)