So far early premiere dates have helped out the CW. The network followed up Monday’s Gossip Girl numbers with a record turnout for 90210. In the end, CW was the winner with the demos while NBC was on top with the viewers.

8pm

• America’s Got Talent (10.6 million, 2.8/8 in 18-49) had the night’s best numbers.
• NCIS* (8 million, 1.6/4) improved by 700,000.
• A House* block (2.4/6) pulled in 6.4 million.
• Wipeout* (5.9 million, 2.1/6) had a 600,000 slump.
• 90210‘s premiere (4.9 million, 2.6/7) had the best demos for any scripted CW show ever.

9pm

• Big Brother 10 (6.5 million, 2.4/6 in 18-49) was up slightly from last week.
• Approximately 3.9 million watched the finale of Wanna Bet? (1.5/4).

10pm

• NBC‘s coverage of the Republican National Convention (1.4/4 in 18-49) raked in 4.9 million.
• ABC‘s RNC hour (0.9/2) delivered 3 million.
• CBS’ political coverage (0.9/2) turned in 2.9 million.

*denotes repeat

(You can review last Tuesday’s ratings here.)