After seeing this thread it inspired me to go watch that show again. I remember it growing up when it use to play on Nike @ Nite all the time (along with The Brady Bunch). Anyways, I'm a Amazon Prime member and just figured out you can watch shows and movies on the site for free. I don't know why I am just finding out about this after 3 years, but better late than never. Amazon has all the seasons of the show, but some of the music is different. The opening credits is a cover version, along with a handful of others throughout the episodes, but there is still the original music in a lot of the scenes.
Not as bad as it could have been, since there is at least some of the original music in it, but I am having a blast watching this (I'm already in Season 2). Hopefully one day they can get the music rights handled and it can be released on DVD.