Prime-time viewership numbers compiled by Nielsen Media Research for Sept. 22-28. 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. (1) "Dancing With The Stars," ABC, 21.34 million viewers.

2. (3) "Desperate Housewives," ABC, 18.68 million viewers.

3. (3) "Grey's Anatomy," ABC, 18.47 million viewers.

4. (X) "Dancing with the Stars Special" (Tuesday), ABC, 18.3 million viewers.

5. (5) "NCIS," CBS, 18.03 million viewers.

6. (2) "NBC Sunday Night Football," NBC, 17.34 million viewers.

7. (6) "CSI: Miami," CBS, 17.23 million viewers.

8. (6) "Criminal Minds," CBS, 17.01 million viewers.

9. (X) "Dancing with the Stars Results Special," ABC, 15.87 million viewers.

10. (9) "The Mentalist," CBS, 15.6 million viewers.

11. (10) "Two And a Half Men," CBS, 14.88 million viewers.

12. (11) "CSI: NY," CBS, 14.59 million viewers.

13. (14) "Survivor: Gabon," CBS, 13.06 million viewers.

14. (15) "60 Minutes," CBS, 12.59 million viewers.

15. (12) "House," Fox, 12.38 million viewers.

16. (21) "The OT," Fox, 12.18 million viewers.

17. (16) "Brothers and Sisters," ABC, 12.03 million viewers.

18. (16) "Extreme Makeover: Home Edition," ABC, 11.95 million viewers.

19. (13) "Sunday Night NFL Pre-Kickoff," NBC, 11.93 million viewers.

20. (18) "Cold Case," CBS, 11.36 million viewers.

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ABC is owned by The Walt Disney Co. CBS is a division of CBS Corp. Fox is a unit of News Corp. NBC is owned by General Electric Co.