FYI, PBS is airing a show about Jewish humor on Wednesday night, 10:30 CENTRAL time. It was previously aired about a year ago, and it's a riot. I can't remember if Seinfeld is on it or not, but there are interviews and clips of the "oldies" as well as the "newsies" (like Billy Crystal). If you appreciate the humor on Seinfeld, you will definitely enjoy this show.
M.