Giants 21, Patriots 17 generated an overnight rating of 47.8 for NBC, which is down very slightly from last year’s 47.9 when the game was on FOX. It’s the third highest overnight in Super Bowl history, behind last year’s game and the 1987 Super Bowl between the Giants and Broncos.
The final numbers will be released in the afternoon.
[UPDATE: The number of viewers for the game: 111.3 million, which makes it the most-watched program in TV history. Last year's Packers/Steelers game was viewed by 111 million people.]