Late Night With David Letterman, show 1210, season 8.
Letterman at deaddisc.com: "played with Late Night band on Another Brick In The Wall, I Can't Turn You Loose, The Mighty Quinn, Hideaway and Good Loving during the commercial breaks. They were interviewed by Letterman and were promoting the release of Built To Last. The main main guest on the programme was Woody Harrelson."
expost: "Jerry Garcia and Bob Weir, October 13, 1989, David Letterman Show," Unbroken Chain 4 ,5 (October 1989), p. 9.