I think the Caveman commercials are getting old. It was funny at first when it was this sort of non-sequiter meta-joke (where it's a normal Geico commerical at first, then they make the caveman comment, to which a nearby caveman cameraman reacts negatively), but then it got completely self-indulgent. A caveman sitcom would hopefully end up like every other prehistory-themed sitcom: cancelled. Then, in five or ten years, there would be a sort of "retro" chic thing, which would result in a Caveman Show DVD box set, along with wired controllers and cars with wheels.