Fast National ratings for Tuesday, Aug. 26, 2008

NBC got another ratings victory Tuesday thanks to the return of its top summer series, while the combined totals for the Democratic convention rose a little.

For the night, NBC averaged a 5.9 rating/10 share. FOX took second with a 4.0/6, edging out CBS' 3.9/6. ABC, 3.1/5, came in fourth. The CW trailed with a 1.5/2.

NBC also led among adults 18-49 with a 2.6 rating. FOX finished second at 2.0, while ABC and CBS tied for third at 1.6. The CW put up a 0.8.

"America's Got Talent" returned with a 6.3/11 for NBC at 8 p.m. A repeat of "NCIS" earned a 5.0/8 for CBS. ABC's "Wipeout" took a fall from its previous average, managing only a 3.9/7. "House," 3.2/5, put FOX in fourth. The CW went with a "Smallville" rerun.

The second hour of "America's Got Talent" improved to 7.3/11 at 9 p.m. FOX moved up to second with another "House" encore, 4.7/7. "Big Brother 10" scored a 4.3/7 for CBS. "Wanna Bet?" was fourth for ABC, topping the 1.5/2 for "Reaper" on The CW.

NBC once again led the network coverage of the Democratic National Convention at 10 p.m., drawing a 4.1/7. ABC posted a 2.9/5 and CBS a 2.4/4.

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