You probably heard a lot of companies urging you to buy their tortilla chips or a new car to get ready for the Big Game . They can't say which big game they're referring to, but they hope you'll figure it out. After seeing all the arguments about the halftime show and also arguments about the alternative halftime show, instead of "Big Game," perhaps we could settle on calling it the Bickering About Politics Bowl (patent pending). But this week, an exhibit is opening at the U