NBC led the night with a 5.5 rating/9 share. FOX took second at 4.1/6, followed closely by CBS at 3.9/6. The CW drew a 3.4/5, and ABC trailed with a 2.8/4. (The CW also dominated the night in the teen and young-adult demos it targets.)
In the adults 18-49 demographic, the 90210 premiere led The CW to the top of the heap for the first time in the network’s two-year-plus history, drawing a 2.6 rating. FOX took second at 2.4, with NBC right behind at 2.3. CBS averaged 1.6 and ABC 1.5.
America’s Got Talent drew a 6.3/10 for NBC at 8 p.m. An NCIS rerun, 5.3/9, put CBS in second. Wipeout finished third for ABC. The 90210 premiere earned a 3.3/5 for The CW, although FOX’s House rerun, 3.2/5, had a few more viewers.
NBC held the lead at 9 p.m. as America’s Got Talent rose to 6.9/10. FOX moved up to second with more House, 5.0/8. Big Brother 10 was third for CBS, while 90210 improved to 3.4/5 in its second hour. ABC’s Wanna Bet? came in at 2.5/4.
Coverage of the Republican National Convention took over the airwaves at 10 p.m. NBC had the biggest broadcast-net audience with a 3.3/6, while ABC and CBS tied at 2.1/4.
Ratings information is taken from fast national data, which includes live and same-day DVR viewing. All numbers are preliminary and subject to change.