Seinfeld is like many programs you need to watch, enjoy and you will get the humour. Until you "connect" it will go over your head. Just like a tickle can feel good on the feet, it can also be overwhelmingly uncomfortable if you don't have the right mindset. Seinfeld is now a feel good..funny program to me. Another example is Star Trek....it took a uni course in business ethics for me to understand each episode is an ethical dilemma with a clear human message. What used to be boring is now interesting because I changed the way I looked at the "story" and now I can connect with it.
It is what we call a "paradigm shift", a classic example is the guy who walks to his car and tries to open the door with his keys only to find the keys don't fit. He may stand there for hours wondering why the key is not working......until he looks back and sees the same car two cars back. No amount of positive thinking was gonna open that car until he realises its not his car.
We often skip channels and ignore interesting programs because we have a pre conception what that program is about. If someone you know was in that program...all of a sudden a boring program becomes so much more interesting even if the story is the same.
Sorry if that's a little deep, i've has a long day and Seinfeld just finished!