This appears to be an “official” DIY release but the tracking was off pretty badly on it. I might try another transfer but that constant horizontal line seems to be tape damage. Regardless, it is really cool to see video of BLAST, Mock and Wrekking Machine so early on. Looks like this is from the 1980s.

From Guerin Myall’s collection

Recorded by: Jim and Janer I think?
Transfer by: Shayne Stacy
Equipment used: Panasonic AG-1980 — Datavideo TBC1000 – ATI TV Wonder 600 USB Adapter — Virtualdub
Enhanced in Adobe Premiere Elements/Neat Video