"Journey of the Sorcerer" was used as the theme music for Douglas Adams' The Hitchhiker's Guide to the Galaxy radio series produced by the BBC in 1978 and 1979. Adams said he had wanted something sci-fi sounding while at the same time suggestive of a traveller, so this banjo-based instrumental struck him therefore as ideal. "Journey of the Sorcerer" was used subsequently for the television series in 1981 (albeit re-recorded), the sequel radio series produced by Above the Title Productions for the BBC in 2003 and 2004, and (re-recorded once again) for the film produced by Disney/Touchstone in 2005. The original version from One of These Nights was used for all original transmissions of all five radio series. The TV adaptation of the series, and also an additional version released on LP record, used an arrangement by Tim Souster, the CD releases of the radio series transmitted in 2004 and 2005 used another one arranged by Philip Pope, and the 2005 film used one by Joby Talbot.

Didn't even remember the instrumental! had to look that one up.

I was startled to hear this recording the record, "Hey! that's Hitchhikers Guide To The Galaxy!"

I had no idea the theme song was by the Eagles and was extremely surprised when I found out.

The Doobie Brothers instead of the Burrito Brothers.
Bernie Leadon didn't quite put it that way, but...