The reason that everyone is drunk at live football games (or really watching them on TV) is that it's 4 hours of boredom interspersed with 60 minutes of action. Same as live poker.
I noticed that since the last time I watched the NFL, they've added even more ads to their games. Inserting little 30 second State Farm commercials in one window while showing the field in another window. Football fans are a bunch of braindead idiots. Hey, but at least the players aren't anymore.