List of the top 20 shows in the prime-time Nielsen ratings

Prime-time viewership numbers compiled by Nielsen Media Research for April 28-May 4. 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) "American Idol" (Tuesday), Fox, 25.09 million viewers.

2. (2) "American Idol" (Wednesday), Fox, 22.8 million viewers.

3. (4) "Dancing With the Stars" (Monday), ABC, 18.22 million viewers.

4. (9) "CSI: Crime Scene Investigation," CBS, 18.01 million viewers.

5. (8) "Dancing With the Stars" (Tuesday), ABC, 17.06 million viewers.

6. (6) "Desperate Housewives," ABC, 16.76 million viewers.

7. (11) "Grey's Anatomy," ABC, 15.31 million viewers.

8. (14) "NCIS," CBS, 14.76 million viewers.

9. (28) "House," Fox, 14.64 million viewers.

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

11. (23) "Criminal Minds," CBS, 13.03 million viewers.

12. (16) "Two And a Half Men," CBS, 12.92 million viewers.

13. (18) "Without a Trace," CBS, 12.83 million viewers.

14. (16) "Survivor: Micronesia," CBS, 12.32 million viewers.

15. (28) "Law And Order: SVU," NBC, 12.31 million viewers.

16. (26) "Hell's Kitchen," Fox, 11.94 million viewers.

17. (18) "Extreme Makeover: Home Edition," ABC, 11.57 million viewers.

18. (32) "Cold Case," CBS, 11.56 million viewers.

19. (28) "CSI: NY," CBS, 11.51 million viewers.

20. (18) "60 Minutes," CBS, 10.73 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.

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