Am I the only MythBusters junkie around here? I have such a crush on Kari, it's not even funny. I have a thing for quirky, kinda-nerdy women.
Discovery has brought out some really, really good shows. American Chopper (although I've kind of tired on it), Dirty Jobs, Deadliest Catch come to mind immediately, but there's usually something on that I'll watch. I was really big into Animal Cops for a long time, ended up watching it so much that we had to go out an adopt a puppy. My guilty pleasure is any cop show that features a lot of stupid criminals, high-speed chases, prostitution stings, and the like.