Ya I think the reason it's so funny to me is the fact that it makes absolutely no sense... peanut butter jelly on a baseball bat? wtf? therefore I listen and I laugh because it's ridiculously funny. Jam and Jelly are pretty much the same thing I think... I just notice most Jams tend to taste way better and are firmer/harder to spread than jelly which is really sloppy and liquidy... but that's based off of my experience... maybe they are the same thing... dunno