What if someone has a trivia question and its wrong??? Some Chris had one and asked when Newman had his millenium party scheduled for and the answer is Dec. 31, 1999, he had the answer as 2000 and its wrong. I just rewatched the episode to make sure.

Newman in fact schedules his party for December 31, 2000. That is why Jerry says "there is no year 0, and thus your party will be one year late, and thus quite lame" (to paraphrase).