I actually bought these for my boyfriend and before that I hadn't even heard of the show. So I gave them to him, he took them home and a few hours later phoned me asking to bring them round that evening so he did, we watched and I was hooked! I've since bought them for myself as well as the next two volumes and also the spinoff series of The Brak Show.
Admittedly I don't know most of the celebrities they interview but that does not affect the fun value of this series. The humour comes from Space Ghost, the host and also his villain co-workers, Zorak and Moltar. This series is also what made me into the huge Zorak fan I have become!
I find it's a show you can watch over and over and it doesn't get old. You find new things to laugh at and the silly humour always makes me laugh. I think it's an aquired taste though, some people love it and some hate it. Those who don't like it though tend to not have the sense of humour that would find it amusing. It's a very random sense of humour. The characters come out with random phrases and such and some of it counds like it's improvised or thought up on the spot. I love it though and recommend you give this show a try!