With so many choices on TV nowadays, there’s something for almost everyone, even if you happen to prefer shows that veer from the usual formulas. Of course, you may need to go to cable to find it, or to trust that it will have staying power. (Last season was not kind to network fantasies like Invasion and Surface.) Cult shows by definition attract obsessively loyal followings — you can’t spell “fanatic” without “fan.” But just because a show is different doesn’t necessarily make it the next Buffy the Vampire Slayer or (wishful thinking) Lost. Here’s my critical spin on some of TV’s highest concepts.