American Gladiators’ ratings slide didn’t stop another reality competition from making a splashy debut yesterday. Last night, Wipeout had the best debut for any freshman summer series since last year. The show gave the ABC a win in the demos while NBC had a hold on the viewers.

8pm

• The debut of Wipeout (9.9 million, 3.7/12 in 18-49) had the night’s best demos.
• Celebrity Family Feud (2.3/8) premiered to 8.8 million.
• NCIS* (7.7 million. 1.2/4) fell in the middle of the pack.
• A repeat of Hell’s Kitchen* (1.3/4) pulled in 3.3 million.
• Beauty and the Geek* (1.2 million, 0.5/2) repeated last week’s numbers.

9pm

• America’s Got Talent (11.5 million, 3.0/9 in 18-49) was down by 1.3 million.
• I Survived a Japanese Game Show (8 million, 3.1/9) retained a good chunk of its lead-in.
• Hell’s Kitchen (7.7 million, 3.6/10) burned off 500,000.
• A 48 Hours Mystery* (1.6/4) had 7.5 million guessing.
• Reaper* (1.7 million, 0.6/2) tacked on another 200,000.

10pm

• Without a Trace* (1.3/4 in 18-49) made its mark with 6.7 million.
• Approximately 6.6 million welcomed back the return of ABC‘s Primetime: The Outsiders (2.5/7).

*denotes repeat

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