Fast National ratings for Tuesday, Feb. 23, 2010.
 
Last Tuesday night, it was "American Idol" beating the skates off of NBC's Olympics coverage. Then, last Wednesday, the Olympics ended a six-year "American Idol" winning streak. 
 
This Tuesday, the start of the "American Idol" Top 24 performances, it was "American Idol" reclaiming its advantage overall and a substantial advantage in the key demo.
 
Among adults 18-49, FOX averaged an 8.9 rating, easily topping the 5.4 rating for NBC in the all-important demographic. ABC's 2.6 rating was third, with CBS falling to fourth with a 1.9 rating. The CW's 0.3 rating trailed.
 
Overall, FOX averaged an estimated 23.96 million viewers to go with a 13.3 rating/20 share for the night. NBC was a solid second with a 12.6/19, though NBC's average viewership of 21.2 million was way back. CBS moved up to third overall with a 5.9/9, beating the 4.0/6 for ABC. The CW's 05/1 trailed.
 
FOX began the night in first with the opening hour of "American Idol" doing a 13.0/20 and an 8.7 rating in the demo. NBC's Olympics coverage was second with an 11.4/17. CBS finished third with a 7.2/11 for an "NCIS" repeat," which more than doubled up ABC's repeat of last week's "Lost." The CW's "90210" repeat had a 0.6/1 to trail.
 
"American Idol" stayed in first at 9 p.m. with a 13.6/20 and a 9.1 demo rating for FOX. NBC's Olympics closed the gap with a 13.1/19 and a 5.6 demo rating. ABC's new "Lost" had a 5.8/8 and a 4.6 rating in the demo, up slightly from last week. CBS' "NCIS: Los Angeles" was a very close third. The CW's repeat of "Melrose Place" did a 0.3/0. Yes, it averaged a "0" share.
 
NBC moved into first at 10 p.m. with a 13.1/22. CBS' "The Good Wife" repeat was second. ABC's new "The Forgotten" had a 3.4/6 for third, though it topped CBS in the key demo.
 
All ratings information comes from preliminary Fast National Nielsen data, which includes live and same-day DVR viewing. All numbers are subject to change, particularly in the case of live events.