[youtube]http://www.youtube.com/watch?v=a4uC2H10uIo&feature=player_embedded#![/youtube]
I have heard this after a few NFL games and just thought it was really weird, you can't talk about the game to your friends? It even says it at the end of a football game on videogames.
Found it on this article about copy write abuse. http://www.ehow.com/facts_5263599_nfl-r ... rules.html
And yes I know what Fair use is.