I could have sworn I had seen either Jerry Band or The Grateful Dead prior to 1992. However, I kept a bunch of ticket stubs and extracted them from the chaos for this exercise in remembrance.
My earliest stub I kept was Charlotte, NC, the Charlotte Coliseum (now torn down and long gone), Wednesday, June 17, 1992.
Touch of Grey
Greatest Story Ever Told
West L.A. Fadeaway
China Cat Sunflower
I Know You Rider
Long Way to Go Home
I don't really remember even being there, but I do remember RFK on the 20th of June.
So, I guess that's my first show, that I have proof of anyway.
I graduated high school in 1989, so by the the Dead were all over MTV with Touch of Grey, the older guys in classes above me had gone off to college and jumped on the bus, and they'd come back home with all sorts of tapes and extracurriculurs and we'd get our party on. Went off to school in 89 but apparently took until 92 to go see the Grateful Dead.
As a poster said above, not the best show ever but I got on the bus and never looked back. Seen every iteration (except Ratdog) since. The Other Ones, The Dead, Phil Lesh & Friends including the mighty 'Q', and now, Furthur.
Every show I get to see now is precious to me, thank you PHIL and BOBBY for keeping on.