I remember this show fondly... it's one of my all-time favourites. I still have the entire series on Beta (recorded off-air during a bad thunderstorm, but what can you do?) I agree with the other posters about it probably being "too smart" to be successful, but I think it was further harmed by the writers' strike that year. The network kept repeating the only 7 episodes (I assume) because there was nothing else in the can. By the time the dispute was resolved, the damage of endless repeats had been done. Too bad. I was in high school when the series debuted, and I loved the fact that the show made me look things up. It really made me want to understand the topics being featured. (And it was a lot harder to look things up back then... no internet!)
