CBS had a big week in the ratings with 19.5 million watching the men’s NCAA college basketball final between Kansas and Memphis Also, led by “CSI: Crime Scene Investigation,” five procedural dramas on CBS were in Nielsen Media Research’s top 20.

But Fox was hotter with “American Idol” and ABC’s big ticket was “Dancing With the Stars.”

ABC’s “Desperate Housewives” returned Sunday with 16.4 million viewers, Nielsen said. That’s down from the 19.8 million for its last original episode in January. But the show tends to lose viewers with the approach of good weather; this week’s viewership was virtually identical to the same week last year.

Prime-time viewership numbers compiled by Nielsen Media Research for April 7-13.

1.  “American Idol” (Tuesday), Fox, 24.67 million viewers.
2. “American Idol” (Thursday),” Fox, 20.13 million viewers.
3. “CSI: Crime Scene Investigation,” CBS, 20.09 million viewers.
4. “Dancing With The Stars” (Monday), ABC, 19.68 million viewers.
5. “NCAA Basketball Championship: Kansas vs. Memphis,” CBS, 19.5 million viewers.
6. “Idol Gives Back,” Fox, 17.75 million viewers.
7. “Dancing With The Stars” (Tuesday), ABC, 17.02 million viewers.
8. “Desperate Housewives,” ABC, 16.37 million viewers.
9. “Without a Trace,” CBS, 14.49 million viewers.
10. “NCIS,” CBS, 14.05 million viewers.
11. “Criminal Minds,” CBS, 13.32 million viewers.
12. “CSI: NY,” CBS, 12.38 million viewers.
13.  “60 Minutes,” CBS, 12.17 million viewers.
14. “Prelude to a Championship,” CBS, 12.04 million viewers.
15.  “Survivor: Micronesia,” CBS, 11.59 million viewers.
16. “Hell’s Kitchen,” Fox, 11.21 million viewers.
17.  “Don’t Forget The Lyrics,” Fox, 10.9 million viewers.
18. “Medium,” NBC, 10.86 million viewers.
19. “Samantha Who?,” ABC, 10.42 million viewers.
20. “Deal Or No Deal” (Monday), NBC, 10.22 million viewers.
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