Got it yesterday. Watched a little of it. The unreleased part of the rehearsal is sort of boring, at the beginning anyway. There's a cool guitar/drums jam in there, and some other neat things briefly. Frank slamming a beer

. The sound has drop-outs during the rehearsal part. I haven't watched the whole main part yet, but the sound seems to be great for that. I wish they would have indexed the tunes, even though it's sort of one long medley.
I guess if you want to experience it like the original broadcast, you could put some gold saran-wrap over your TV screen

The way they filmed this in general is frustrating, that typical '60s LSD-influenced montage effect, with everything superimposed. Thank God they didn't do that on the Beefheart footage a few yrs later.
Overall nice to have in the collection, but could have been done better.