Well, yeah they surely have them all as audio recordings, but one thing we've learned is that Obie usually says what fans want to hear in these conversations.
I've talked to two people over the years who were at two or three shows each and they stated that there were basically no stage cameras set up since they didn't have a screen. In 1990, Jon hired a person to stand in the front rows and film the footage we all know.
Of course, they filmed in 1996, so I'm sure they have the full one of these in the vaults. With the others, I'm not sure all years exist (other than maybe from one steady camera).
Where I'm rather sure is that their club tours like in 1992 or pre-Christmas in 1994 with the exciting setlist weren't professionally filmed.