Who has watched this show? If you haven't, watch it. This is a another great product of the 1990s 'golden age' of animation (along with Batman TAS, X-Men, Spider-Man, Animaniacs, Duck Tales, etc.). It's a wonderful show with a rich and detailed mythology of its own. I love how bits and pieces of the past come out slowly and there's many 'ah ha!' moments throughout the series once you realize why something exists or happens in the present time. It's an animated show but has very adult themes and can be enjoyed by all ages.
Unfortunately, the whole series isn't on DVD or Netflix, but you can torrent it if you look around.
I could watch this show all day. And I just might.