Update III: Super Bowl Most-Watched Ever, Says Nielsen

This is the most-watched Super Bowl telecast ever and the second most-watched broadcast in television history.
Based on updated final national ratings, the Arizona Cardinals vs. Pittsburgh Steelers matchup on NBC’s coverage of Super Bowl XLIII on Sunday, Feb. 1 finished at a record 98.7 million viewers, according to Nielsen Media Research. 

Comparably, that makes it the most watched Super Bowl telecast ever – 1.2 million viewers above the 97.5 million who tuned in for the New York Giants versus New England Patriots one year earlier.  
Here are the top five rated Super Bowl telecasts ever:
1.      Super Bowl XLIII – NBC (2009): 98.7 million
2.      Super Bowl XLII – Fox (2008): 97.5 million
3.      Super Bowl XXX – NBC (1996): 94.1 million
4.      Super Bowl XLI – CBS (2007): 93.2 million
5.      Super Bowl XXVII – NBC (1993): 91.0
This also makes Super Bowl XLIII the second most-watched broadcast in television history (behind the M.A.S.H. finale on CBS in 1983).