Per LIA, parts of this show were taped over on 10/30; these are the bits that survive on the 10/30 reels. Date uncertain; more discussion in this comment.
Billings, i.e., what to call this aggregation, were kind of all over the place. See specifics from the various papers below.
Per Latvala, 4x 4-track 15 ips reels of this event exist in the GD Vault (Dwork 1996, 26, h/t Deadlists)." Vault tape box identifies Bill, Mickey, Phil and Jerry.