David Bowie performing TVC-15, his 1976 single from the Station to Station album, live on the West German programme Muzikladen, on 30 May 1978. Bowie looks suspiciously healthy. The song was famously inspired by a hallucination of Iggy Pop, who believed a TV was swallowing his girlfriend. See also below the link for the 1976 Top of the Pops performance by the in-house dance troupe Ruby Flipper, which bears so little relation to the song that it's beyond perfect.
Music: TOTP - TVC-15 (Ruby Flipper dance routine, 1976, Savile alert)
Music: Bowie clipology, 8 January 2013
Movies: In the lair of the Goblin King, 12 July 2009