He's more a historian type. Of course he cracks jokes about the movie, but you get a deeper history lesson on things as you watch. He doesn't talk over the movie, rather, he does segments during "commercial breaks." He stops the movie & talks a little about what we just watched. Sometimes he has special guests who join in the conversation or often Darcy, the Mail Girl will join in.
It's a little more like Elvira's Movie Macabre where she breaks in during the breaks. But where she would sometimes pop up on screen during the movie, Joe Bob pretty much stays to the breaks when he comments. He covers a wide range of horror films, from great to trashy & everything in between...except Halloween 3.
As Joe Bob would say, check it out. You might have some fun with it & you'll definitely learn something about the genre. Plus, you'll have some laughs along the way.