#TBT “TRUCKIN - THAT’S NOT A WORD!” \u001f—DAVID LETTERMAN TO JERRY GARCIA Here’s another installment in our ongoing series of historic appearances by the Grateful Dead on film and television. In this clip, David Letterman features Jerry Garcia and Bob Weir for the second time on NBCs “Late Night with David Letterman” on Thursday, September 17, 1987, in the midst of a five show run by the Grateful Dead at Madison Square Garden. On the show, they promote their new album, “In the Dark”, which had