Sunday's Super Bowl scored the third highest overnight rating in history with almost one out of every two households tuned to the game, according to Nielsen Media Research.

The overnight ratings of 47.8 finished behind Super Bowl XLV (Packers-Steelers on FOX) and Super Bowl XXI (Giants-Broncos on CBS). They each scored a 47.9 ratings.

Sunday's victory by the Giants earned a 71 share, which means almost three out of every four households with sets in use were tuned to the game. That ties the Packers-Steelers game for the highest overnight share ever.

Not surprisingly, the audience peaked between 9:30 and 10 p.m. Sunday with a ratings of 51.8.

Baltimore was not among the Top 10 markets in viewership.

Boston led all cities with a 56.7 rating followed by Indianapolis (where the game was played) with a 56.4. New York ranked only 18th with a 49.7 share.