A new original series on AMC. It is a dark comedy, about a chemistry teacher, who gets involved with dealing meth. I have seen the first three episodes, and I must say, the story is pretty solid.
Link is here for more info on the show.
As I said before, it's a pretty dark comedy, so don't expect to laugh that much. I think it has a great plot though. It is somewhat similar to "The Sapranos".