For those who are fed up with expensive bills from their cable TV provider and choose to view TV and videos from the internet via a PC, her e is a good article with the info you'll need to view the Super Bowl live at on your computer.
I'll be connecting my PC up to our big screen TV and watching the event myself via the link at NFL.com. You can read the details on the Mashable website: Super Bowl 2012: Everything You Need to Know About Watching It Online
As Mashable pointed out in an earlier article "This is a huge move for major sports... Offering a simulcast online opens up the game to fans who may have decided to cut the cord (or who don’t even have TVs anymore). This is great news for advertisers, who get additional eyeballs as well."