9. Buffy The Vampire Slayer
I was hooked on this show at one time and was utterly obsessed with it. I had a very bad feeling that things were going to go downhill after it switched networks after the fifth season and I was correct. It just seemed to lose something in the transition and we got bombarded with poorly written-and just plain dumb-episodes (that included a musical and one that featured Buffy working at a hamburger joint that ended with her fighting this old lady demon who had what looked like a giant dick coming out of her head) as well as the worst big bads ever to appear on the show (Warren and his gang of dorks? Really guys? After she just fought-and died-at the hands of a Goddess I dont think Buffy would really be that afraid of a bunch of nerds obsessed with Star Wars that was out to get her). By the time the last season rolled around Id all but given up on it and couldnt help but feel totally underwhelmed by the hastily thrown together series finale (which could have ruled but ultimately failed to live up to this potential).