Top Gear was a BBC radio programme in the sixties. At the time the BBC had lost a lot of its young audience to RTL and pirate stations. In the early years of BBC Radio 1 from 1967 on the show was revived and by then it featured mainly progressive music. This small bit can be found on a Pink Floyd bootleg called Celestial Voices. John Peel announces the bands and artists he will play on the show and there is some menacing rather extraterrestrial sounding instrumental music by Pink Floyd, I suppose, in the background. This is radio and rock history.
(The list of all 316 selections since 1st February 2010 is here)