I'm still scrolling through episodes on YouTube. Billy Preston is one of my favorite hosts so far. Also watched the Jim Croce episode, which was good but depressing; Croce and his guitarist Maury Muehleisen perished just a few months later.
My dad always told me about that show was a big thing for many of them during that time. The attention that the show always had kind of died down with the coming of MTV, but I took time to see some of their episodes on YouTube and it was quite interesting to watch.