List of top 20 shows in prime-time Nielsen ratings (AP)

Prime-time viewership numbers compiled by Nielsen Media Research for Oct. 6-12. 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) "CSI: Crime Scene Investigation," CBS, 23.49 million viewers.

2. (2) "Dancing with the Stars," ABC, 18.59 million viewers.

3. (3) "NCIS," CBS, 16.3 million viewers.

4. (7) "Criminal Minds," CBS, 16.19 million viewers.

5. (10) "CSI: NY," CBS, 15.87 million viewers.

6. (6) "Desperate Housewives," ABC, 15.51 million viewers.

7. (X) "Dancing with the Stars Results," ABC, 15.07 million viewers.

8. (3) "Grey's Anatomy," ABC, 14.8 million viewers.

9. (19) "The OT," Fox, 14.23 million viewers.

10. (12) "Two and a Half Men," CBS, 14.07 million viewers.

11. (10) "CSI: Miami," CBS, 13.88 million viewers.

12. (14) "Survivor: Gabon," CBS, 13.28 million viewers.

13. (5) "Sunday Night Football: New England at San Diego," NBC, 13.05 million viewers.

14. (19) "Eleventh Hour," CBS, 11.37 million viewers.

15. (17) "Extreme Makeover: Home Edition," ABC, 11.34 million viewers.

16. (19) "Life On Mars," ABC, 11.33 million viewers.

17. (22) "Cold Case," CBS, 11 million viewers.

18. (X) "SNL: Weekend Update," NBC, 10.85 million viewers.

19. (13) "60 Minutes," CBS, 10.75 million viewers.

20. (27) "Bones," Fox, 10.56 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.