“Seinfeld"s catch phrase, “Yada, yada, yada” was number one on ”“TV’s 50 Funniest Phrases”, a recent two-hour special. "No soup for you" was No.21 and "Hello, Newman" was No. 50.
http://www.seacoastonline.com/articles/20090526-ENTERTAIN-90526050
You might also like to check out something I wrote about yada yada yada in a cat website.