Here's a press release from Turner Sports than I think a handful of you may find interesting and/or useful.
The 2013 NCAA Division I Men's Basketball National Championship across CBS, TBS, TNT and truTV is the most-watched NCAA Tournament in 19 years, according to Nielsen. The 2013 NCAA Tournament averaged 10.7 million total viewers, up 11% from last year's 9.6 million viewers, and is the highest average for the NCAA Tournament in 19 years (11.2 million; 1994).
The National Championship game, which saw Louisville defeat Michigan on CBS on Monday, April 8, earned an average fast national household rating/share of 14.0/22, up 14% from last year's 12.3/19 (Kentucky-Kansas). The National Championship game averaged 23.4 million viewers, up 12% from last year's 20.9 million.
The Championship game coverage peaked in HH rating/share with a 16.1/27 and average viewers with 27.1 million, from 11:00-11:30 PM, ET.
Coverage for the entire 2013 NCAA Tournament across Turner Sports and CBS Sports averaged a HH rating/share of 6.7/14, up 10% from last year's 6.1/13, and is the highest average NCAA Tournament rating in eight years (6.9/15; 2005).
Earlier this year I received an email which included the line (I swear to God) "without Kentucky, college basketball would be a niche sport like lacrosse." I then saw the same comment (had to be the same guy) on Twitter several weeks later.
Clearly he was correct.