Ok well it's not the oldest (Bridgewater College in 1992) but the quality on this one is much much better.

Check out this rare footage of Dave and the Band at a Van Riper's Lake Party in Afton, VA on April 5th 1992 in what is arguably their oldest concert on the internet



Cheers

Setlist
Once on a Wild Afternoon [tease]
Two Step
Lover Lay Down
Satellite
Ants Marching »
Recently
So Much to Say
The Song That Jane Likes
True Reflections
Dancing Nancies
All Along the Watchtower
Tripping Billies