Alright, it's not a Phish jam, and I know this is a Phish forum, but can any of you help me ID this Grateful Dead jam? It sounds like Peggy-O to me but I can't figure out the show/date. I'm going to take this to a Dead forum too, but I figure you guys might be of some assistance too. It starts precisely at 4:13 in this video:

http://mediaburn.org/video/the-90s-episode-101/