Here's mine - a bit different from others:
Since my son was born, I don't watch live. I can't, because my Michigan game watching is way too instense to have a 4 year old around who wants to talk and play and who may think his father is insane based upon some of my reactions to the game.
So, we DVR the game. But, we go a step further - from the time of kickoff, all forms of communiations go dark - the phone is turned off, the cell phones are put away and the blackberries are put in drawers. We don't turn on the TV or go on the internet - we essentially go into a complete media blackout.
We avoid places with televisions (since most places have college football on TV), and we avoid wearing our Michigan gear.
Then, we try to get our son to bed even earlier than normal, and by 8:00, it is game time. We have a whole ritual: Dinner always consists of some awesome food that my wife makes that can be eaten in the den (favorites are beef empenadas or meatball pizza - basically, foods that don't require utensils). We save dessert for the second half (again, usually something awesome that my wife bakes - this week is homemade dark double chocolate brownies).
The one rule that we have is no fast forwarding through dead balls or commercials - we perfectly replicate the live game experience, with the one exception of fast-forwarding through halftime. When my son was born, I used to hate not being able to watch it live but this whole delayed watching experience has become something that I really enjoy - you get your entire day on Saturday and get to build up the anticipation all day.