How a game 50 years ago came to define Super Bowl as we know it

This Sunday night, more than 100 million people will watch the Super Bowl, TV's biggest spectacle of the year. There will jets and pyrotechnics and Gladys Knight and Big Boi and Maroon 5 and commercials that cost $5 million for just 30 seconds and also some football. And almost all of it is due to one game 50 years ago.