Slambodians-924 Gilman 6/27/87 xfer from Master VHS Tape w/unknown band start Crossover Thrash Metal

I fired up the VHS digitizing setup and started back up on Chris Eng's tapes this week. There is about 2min of an unknown band to start this tape (forgot to trim)- if anyone knows who it is, let me know.
Then, the legendary Slambodians. I think this is the first demo lineup of Eric Johnson/Wayne Park/James Pittman/Aaron Crozier/Chris Giese, but not 100% sure. East bay crossover/thrash metal- the band played quite a few shows in the late 80s.
Recorded by: Chris Eng
Transfer by: Shayne Stacy
Equipment used: Panasonic AG-1980 - Datavideo TBC1000 - Tevion USB Adapter - Virtualdub

[@fatbackfunk]

Hmm, I don't see any other band in this video. It starts out with the same band, the only difference is, the sound at the beginning up until 1:23 is clearly from the board and then eventually transitions into, what sounds more like the camera mic from there. But again, there's definitely no other band shown in the video, that's for sure. Unless of course, you ended up trimming it after writing the description?!

[@philswanson5429]

Slambodians sound check is best guess.

[@fatbackfunk]

@@philswanson5429 Yeah, most likely, seeing as right after that first minute or so of them playing, that dude then gets up and officially introduces em'.

[@sacramentomusicarchive]

Yeah, it was confusing.