Emergency: Free live TV on the computer?

Please, I really need a completely free live TV internet site for watching the Superbowl (45) . My TV doesn't have cable and my parents won't get an antenna till next week. They're not considering my feelings right now so they aren't even looking for the other antenna we already have. Please I really need to see the Superbowl! ... and for free so my parents don't kill me.