NBC will be streaming this Sunday’s Super Bowl online at no extra charge, marking the first time the big game will be seen live in its entirety on the web.

The decision by NBC is based in the theory of the “second screen” experience—people will simultaneously watch the event on a big screen TV and mobile device. With the Super Bowl webcast set to offer extra camera angles and commercials on-demand, the theory is likely to hold true. It's essentially the high-tech equivalent of the guy at the ballpark with his headphones on tuning into the radio broadcast.

The simulcast  model has worked for NBC in the past--the webcasts of the network's Sunday Night Football games draw on average 200,000 to 300,000 unique viewers.

[via AllThingsD]