The Mid Vid Skit is kind of the MTV version of those annoying comedy sketches that hip-hop albums have between some tracks, but worse because they turn up in the middle of the video. They don't have to be funny, but they usually are in order to justify interrupting the audience's entertainment. Of course, they're not usually funny after the second or third time - and considering how often videos are replayed, that means they get old very, very quickly indeed. Compare Talky Bookends, which open and/or close the video instead of interrupting it.