off wikipedia
1 M*A*S*H series finale: "Goodbye, Farewell and Amen" 50.15 million
60.2% 77% February 28, 1983 CBS
2 Dallas episode: "Who Done It?" aka "Who Shot J.R.?" 41.47 million
53.3% 76% November 21, 1980 CBS
Bold-percent of households
1 Super Bowl XLII
(New York Giants vs. New England Patriots) 97.5 million[2]
43.3% 65% February 3, 2008 FOX
2 Super Bowl XLI
(Indianapolis Colts vs. Chicago Bears) 93.1 million[3]
42.0% 63% February 4, 2007 CBS
3 Super Bowl XL
(Pittsburgh Steelers vs. Seattle Seahawks) 90.7 million[4]
41.6% 62% February 5, 2006 ABC
4 Super Bowl XXXVIII
(New England Patriots vs. Carolina Panthers) 89.8 million[5]
41.4% 63% February 1, 2004 CBS
5 Super Bowl XXXIX
(New England Patriots vs. Philadelphia Eagles) 86.1 million[6]
41.1% 62% February 6, 2005 FOX
6 Super Bowl XXXVII
(Tampa Bay Buccaneers vs. Oakland Raiders) 88.6 million[5]
40.7% 61% January 26, 2003 ABC
for further explanation
http://en.wikipedia.org/wiki/List_o...op_29_network_primetime_telecasts_of_all_time