I just started watching this on Tubi. If you like live action stupidity it's pretty good. The first episode was ed McMahan hosting a vegas style "roast" of The Flash, Hawk man, and Adam West Batman. It is pretty crazy looking
(https://haphazardstuff.com/wp-content/uploads/2012/11/Legends-of-the-Superheroes-1979-Black-Canary-Scarlet-Cyclone-Huntress.jpg)
https://www.youtube.com/watch?v=TnGDZLK1yDM (https://www.youtube.com/watch?v=TnGDZLK1yDM) this is the opening
I picked up a copy of this at a comic book convention one year, and watched it with some friends. We all had a good time with it. Solomon Grundy was our favorite part.
I'm really surprised this isn't more talked about than it is.