The intro to the second set of this Dead show from 2/14/70 at the Fillmore East is pretty famous for legendary late-night horror movie host John Zacherle's intro of "The Grateful Goddamn Dead!" as heard on Dick's Picks Vol 4, but I was more tickled by Jerry and Bobby's banter at the beginning. It would serve as a pretty good mission statement for Beige Party:
https://ia800901.us.archive.org/23/items/gd70-02-14.early-late.sbd.cotsman.18115.sbeok.shnf/gd70-02-14d1t06.mp3