Brenden
Message me if you need anything :)
As others said, he can argue fair use. If your content is used to educate, it falls under fair use. You can show a video of South Park and provide facts or whatever, and since it's used to inform or educate, you get away with it. It is a fine line really, but it could be why channels such as WatchMojo, and Top 5 channels, get away with it.