It was part of a cross over. To boost rating up. Obviously Seinfeld didn’t need Mad About You, but can’t say the same for the other.
Do you remember the episode where Jerry starts calling his girlfriend “sweetie” and all those other annoying little names? Well then George started doing this out of spite, and in the end Susan wanted to get even closer to him. So they started to watch that Show. And in the end you see them in bed as the Show is on. Well that Show is Mad About You.
A very deceiving and clever way to cross over. I think this is handiwork of Larry David. Pure Genius. He obviously clearly states what he thinks of the Show, yet he does it in such a way that he didn’t go back on his agreement. He crossed it over indeed J
What’s The Show About?
“Light television comedy featuring Paul and Jaime Buchman as a recently married couple in New York City”
About Kramer’s Appearance:
Well apparently he and Paul used to be neighbors. And now Jamie wants Paul to get rid of it because she doesn’t like when people hold on to old useful things just for memories. I am not sure how he still owns it, but ether way. When he goes over K-Man pop’s up and has a little chat. Paul asks what’s Jerry up to etc And This is Season 3 or 4 of Seinfeld, So K-Man states that Jerry is writing a sitcom.
The Reverse Episode:
You remember the Trip to India in reverse? Well there’s a beginning(really ending) shot of how K-Man and Jerry meet. On the mailbox it doesn’t say “Buchman”. So Larry or someone else decided to ignore that little detail, pronouncing the cross over not authentic in a way.
P.S Larry has nothing against the Actor as he gave him a Cameo on Curb. But I agree the Show is quite terrible. At least the later seasons are.