>>213802837 (OP)Watch the VERY first episode. You get to witness them having a heated argument, and they remind you of an old married couple. The two of them are so different personality-wise and that's what makes them a great team.
I'm sure they bickered plenty after that, but I suspect the producers had their spats edited out so as not to upset their younger audience. It's too bad. Working on a project with someone, especially a science project, often involves differences and disagreements. Their behind the scenes bitching is a huge part of the Mythbusters process that we never really get to see.