It might come under fair use, but can this site afford to make that case? It does seem like an awful lot of one show to be using. They'd probably be better off

It might come under fair use, but can this site afford to make that case? It does seem like an awful lot of one show to be using. They'd probably be better off if they pulled this mix of concepts from multiple sources. There's really no educational reason this site needs to be Seinfeld only. It seems like they're trading off the original content perhaps a little more than is fair.