I must defend the Seinfeld show here. I remember seeing things like this online, like Cracked articles-videos and the like. And when I read them they often seemed to make a convincing case. For example one of the things I saw, it may have been cracked but can't recall, made the point that Seinfeld has no real jokes or punchlines and backed it up with clips. But then I decided to watch the entire show again from episode 1 to the finale and I quickly realized 1) the show is still very funny if you have a sense of humor and like smart jokes, 2) they had been cherry picking to make a case that there were no jokes. It very clearly has jokes and punchlines. Especially when you think of the pablum that came before Seinfeld on sitcoms
Another thing I realized watching it with my wife, whose first language isn't English, was how universal the humor in the show is thanks to characters like Kramer and Newman who do a lot of very physical comedy.