Pat O'Brien can't make up his mind. Is he a sports broadcaster who does entertainment news or is he a celebrity interviewer who dabbles in sports? After nine years at CBS Sports, he left in 1990 to do stints at ET and Access Hollywood before debuting as The Insider. In the midst of all that, O'Brien also covered the 2000 and 2004 Olympic Games. Next up, he hosts tonight's CBS special, The Greatest Commercials: Super Bowl vs. the World, at 8 pm/ET. It features classic American ads from the big game competing against foreign spots. As O'Brien himself would say, let's get inside...