i) births and deaths

19 February 2020: death of Norman Hartley, who played Ulf in the story we now call The Time Meddler (First Doctor, 1965) and Sergeant Peters in The Invasion (Second Doctor, 1968)

broadcast anniversaries

19 February 1966: broadcast of "Priest of Death", third episode of the story we now call The Massacre. Admiral de Coligny is shot and wounded; the Abbot (or is it the Doctor???) is killed. (No surviving pictures that I could find quickly.)

19 February 1972: broadcast of fourth episode of The Curse of Peladon. The Ice Warriors kill Arcturus who was behind it all; Aggedor kills Hepesh; and all ends happily.

19 February 1977: broadcast of fourth episode of The Robots of Death. The Doctor alters the voice of Dask/Taran Capel with helium, and he is killed by his own robots.