Would it be feasible to get in contact with some of the artists interviewed? If Slick Shoes had a copy from as recent as 2015, it may be possible some of the others have a copy as well, particularly the smaller bands.
It'd certainly be possible, I imagine some of the smaller artists might at least respond if we could find them on social media. I wanted to reach out to the guy from Slick Shoes who uploaded their clip on YouTube to try to get the full episode, but unfortunately he doesn't have any contact info listed.