Prime-time viewership numbers compiled by Nielsen Media Research for Aug. 13-19. 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. (35) ''America's Got Talent,'' NBC, 10.83 million viewers.

2. (27) ''60 Minutes,'' CBS, 9.91 million viewers.

3. (41) ''Singing Bee,'' NBC, 9.73 million viewers.

4. (60) ''Hell's Kitchen,'' Fox, 9.68 million viewers.

5. (45) ''So You Think You Can Dance'' (Thursday), Fox, 9.61 million viewers.

6. (7) ''CSI: Crime Scene Investigation,'' CBS, 9.49 million viewers.

7. (20) ''Two and a Half Men,'' CBS, 9.22 million viewers.

8. (22) ''Without a Trace,'' CBS, 9.10 million viewers.

9. (58) ''So You Think You Can Dance'' (Wednesday), Fox, 8.68 million viewers.

10. (20) ''NCIS,'' CBS, 8.53 million viewers.

11. (22) ''Criminal Minds,'' CBS, 8.26 million viewers.

12. (25) ''Cold Case,'' CBS, 8.24 million viewers.

13. (13) ''CSI: Miami,'' CBS, 8.2 million viewers.

14. (22) ''CSI: NY,'' CBS, 8.14 million viewers.

15. (X) ''So You Think Can Dance'' (Monday) Fox, 7.87 million viewers.

16. (80) ''Power of Ten,'' CBS, 7.67 million viewers.

17. (89) ''Big Brother 8'' (Tuesday), CBS, 7.56 million viewers.

18. (29) ''Extreme Makeover: Home Edition,'' ABC, 7.55 million viewers.

19. (89) ''Big Brother 8'' (Thursday), CBS, 7.51 million viewers.

20. (100) ''Big Brother 8'' (Sunday), CBS, 7.38 million viewers.

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