I have to say that Bizzaro Jerry is one of my favorite episodes. It is so unexpected. That's one thing I really love about this show....it is NOT predictable! It's crazy! I love it!
I have seen almost every episode, but I didn't really start loving the show until last year while watching the new ones. I remember seeing the one in which Kramer hosts the Japanese tourists and they get stuck in his dresser drawer. It was again so unexpected, so refreshing, so hilarious.....and so UNLIKE anything else on TV. My husband and I would just say a few words from that episode and burst out laughing together.
I have to say, that's what I love about Seinfeld...it's so unexpected and refreshing....and still so freaking funny!
Maria
PS It's hard for me to distinguish between old and new episodes because I saw almost all of the episodes in syndication.