1. The Rooting Interest Fan
He is a diehard of one of the teams in the game and will be rooting with everything he's got. This is one of the biggest nights of his sports fandom life and he's taking it seriously.
Then, during the kickoff, someone will walk in front of the television and he'll suddenly realize he's made a grave mistake: "Oh, no. I'm surrounded by morons. This is the last place I should be watching this game."
If he lives close enough, he'll make a break for it at halftime and try to get home before the start of the third quarter to watch it on his own TV. If not, you'll find him in an upstairs bedroom, huddled close to the television. So no one walk in front of it. And because it's only a 13-inch TV and he can barely see what's happening.