'Biggest Loser' a demo winner for NBC

Fast National ratings for Tuesday, Sept. 11, 2007

"The Biggest Loser" had an OK premiere for NBC Tuesday night, but CBS still grabbed the biggest piece of the overall ratings pie.

CBS averaged a 5.2 rating/9 share in primetime to carry the night. NBC was not far behind at 4.8/8, and FOX took third with a 4.6/8. ABC, 3.6/6, came in fourth, and The CW was well off the pace at 1.0/2.

In the adults 18-49 demographic, NBC led with a 2.8 rating. CBS grabbed second with a 2.2, followed closely by FOX at 2.1. ABC averaged 1.7 and The CW fell short of the 1.0 mark.

"Power of 10," 4.8/8, won the 8 p.m. hour for CBS. The fourth-season premiere of "The Biggest Loser" earned a 4.5/8 for NBC to take second in households, but ABC had a few more viewers with "Just for Laughs." A "Bones" repeat on FOX came in fourth, while The CW took fifth with "Gilmore Girls."

"The Biggest Loser" improved to 5.5/9 at 9 p.m., moving NBC into the lead. CBS' "Big Brother" and FOX's "House" tied for second at 5.4/9, with CBS drawing more viewers. ABC dipped to 2.5/4 with "i-Caught." The CW went with a "Beauty and the Geek" repeat.

CBS regained the top spot at 10 p.m. with "NCIS," 5.3/9. A "Law & Order: SVU" rerun on NBC drew a 4.5/8, while "Primetime: Crime" posted a 4.0/7 for ABC.

Ratings information is taken from fast national data, which includes live and same-day DVR viewing. All numbers are preliminary and subject to change.