Primetime viewership numbers compiled by Nielsen Media Research for Aug. 1723. Listings include the week’s ranking, with viewership for the week and season-to-date rankings in parentheses. An “X” in parentheses denotes a one-time-only presentation.

1. (12) “America’s Got Talent” (Tuesday), NBC, 11.88 million viewers.

2. (20) “America’s Got Talent” (Wednesday, 9 p.m.), NBC, 10.67 million viewers.

3. (6) “NCIS,” CBS, 9.85 million viewers.

4. (11) “Two and a Half Men,” CBS, 8.55 million viewers.

5. (38) “The Big Bang Theory,” CBS, 8.04 million viewers.

6. (76) “Big Brother 11” (Tuesday), CBS, 7.98 million viewers.

7. (8) “The Mentalist,” CBS, 7.85 million viewers.

8. (14) “60 Minutes,” CBS, 7.77 million viewers.

9. (X) “Who Wants to Be a Millionaire” (Sunday), ABC, 7.59 million viewers.

10. (52) “Hell’s Kitchen,” Fox, 7.49 million viewers.

11. (76) “Big Brother 11” (Sunday), CBS, 7.48 million viewers.

12. (7) “CSI: Crime Scene Investigation,” CBS, 7.42 million viewers.

13. (X) “Who Wants to Be a Millionaire” (Monday), ABC, 7.06 million viewers.

14. (X) “Who Wants to Be a Millionaire” (Wednesday), ABC, 6.87 million viewers.

15. (95) “Dateline NBC” (Monday), NBC, 6.85 million viewers.

16. (76) “America’s Funniest Home Videos,” ABC, 6.84 million viewers.

17. (14) “Criminal Minds,” CBS, 6.82 million viewers.

18. (X) “Who Wants to Be a Millionaire” (Thursday), ABC, 6.78 million viewers.

19. (76) “Big Brother 11” (Thursday), CBS, 6.75 million viewers.

20. (X) “NFL on Fox Preseason 2,” Fox, 6.66 million viewers.