Go! Its a lot of fun. And certainly, the more you do know a particular show the funnier it is.
While you don't have to know all of them, I would think it wouldn't be much fun if you aren't familiar with many.
It's fun, it's silly.
Enjoy.
If we're not having fun, then why are we doing it?
These are DISCUSSION boards, not mutual admiration boards. Discussion only occurs when we are willing to hear what others are thinking, regardless of whether it is alignment to our own thoughts.