Fast National ratings for Wednesday, August 25, 2010.
 
For the second straight week, "Masterchef" led FOX to a Tuesday win in the all-important demo despite not winning either of its hours, while "America's Got Talent" kept NBC on top.
 
Meanwhile, CBS' "Big Brother" continued the show's late-summer climb.
 
Among adults 18-49, FOX won the night with a 2.2 rating, with NBC's 2.0 rating and the 1.9 rating for CBS following closely in the key demographic. ABC was a distant fourth with a 1.1 rating, while The CW's 0.4 rating trailed.
 
Overall, though, NBC averaged an estimated 7.412 million viewers to go with a 4.6 rating/8 share. CBS was a close second with a 4.4/8, with FOX well back in third with a 3.0/5. ABC's 2.5/4 and The CW's 0.8/1 brought up the rear.
 
"Big Brother" started the night in first for CBS with a 4.8/8 and a 2.8 demo rating, both up from last Wednesday's show. NBC's "Minute to Win It" was second with a 3.8/7. FOX's "Masterchef" had a 2.9/5 for third overall and finished second in the demo. ABC's two episodes of "The Middle" were a close fourth with a 2.8/5, leaving The CW's "America's Next Top Model" in fifth.
 
NBC moved into first in the 9 p.m. hour with a 6.0/10 for "America's Got Talent," which also did a 2.6 demo rating. CBS' repeat of "Criminal Minds" was second overall and third in the demo. FOX finished third overall witha  3.1/5 for "Masterchef" and second again in the demo. ABC's repeats of "Modern Family" and "Cougar Town" were fourth with a 2.4/4. The CW's new "Plain Jane" was fifth with a 0.7/1, slipping slightly from last week.
 
CBS was back in first overall in the 10 p.m. hour with a 4.1/7 for a "CSI: NY" repeat. NBC's "Law & Order: Special Victims Unit" was second overall with a 3.8/7 and won the hour with a 1.7 demo rating. ABC was third with a "Castle" repeat.
 
All ratings information comes from preliminary Fast National Nielsen data, which includes live and same-day DVR viewing. All numbers are subject to change.
Dan-feinberg-med
A long-time member of the TCA Board and a longer-time blogger of "American Idol," Dan Fienberg writes about TV, except for when he writes about movies or sometimes writes about the Red Sox. But never music. He would sound stupid talking about music.