"Martin Freeman as Bilbo (possibly the most inspired piece of casting of the last few years, if only because it's made me realize just how much Bilbo and Arthur Dent have in common)"
26 October 1987: broadcast of fourth episode of Paradise Towers, In a final confrontation, both Pex and Kroagnon are killed, and the inhabitants of the Towers look forward to a new future.
26 October 1988: broadcast of fourth episode of Remembrance of the Daleks. Grand battle between the Dalek factions; the Doctor destroys Skaro and also forces the Black Dalek to explode.
26 October 2010: broadcast of second episode of Death of the Doctor.
iii) historical event in canon
26 October 1881: The gunfight at the O.K. Corral, as witnessed by the First Doctor, Steven and Dodo in The Gunfighters (1966).