The Nielsen Rating's Top 20 TV Shows for May 10 - May 16. The first number is the ranking, the second number is the season average, then the show name and network. The last number represents the number of viewers in millions. An asterisk * indicates a tie.American Idol (the Results Show) is back in the #1 Nielsen Ratings spot this week. The American Idol Performance Show is tied with Dancing With The Stars for the #2 spot. The Survivor Heroes vs. Villains finale came in at #9. Didn't Survivor used to be #1? LOST does not show up in the Top 20, even though LOST is nearing its end.
| Rank | Show name | Network | Viewers in millions | Season-to-date average (in millions) |
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| 1. | American Idol (Wed.) | Fox | 19.6 | 23.5 |
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| * | American Idol (Tues.) | Fox | 19.2 | 25.0 |
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| 3. | Dancing with the Stars | ABC | 19.2 | 19.7 |
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| 4. | NCIS | CBS | 17.2 | 18.8 |
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| 5. | NCIS: Los Angeles | CBS | 16.0 | 15.7 |
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| 6. | The Mentalist | CBS | 14.8 | 16.8 |
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| 7. | Two and a Half Men | CBS | 13.9 | 14.6 |
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| 8. | The Big Bang Theory | CBS | 13.7 | 14.1 |
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| 9. | Survivor: Heroes | CBS | 13.5 | -- |
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| 10. | CSI | CBS | 13.4 | 15.8 |
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| 11. | Survivor: Heroes | CBS | 13.3 | 13.6 |
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| 12. | Criminal Minds | CBS | 13.1 | 13.5 |
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| * | The Good Wife | CBS | 12.9 | 12.8 |
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| 14. | Desperate Housewives | ABC | 12.5 | 14.0 |
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| 15. | Dancing with the Stars Results | ABC | 12.5 | 15.0 |
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| 16. | Glee | Fox | 11.6 | 9.4 |
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| 17. | 60 Minutes | CBS | 11.4 | 13.4 |
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| * | CSI: NY | CBS | 11.4 | 12.3 |
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| 19. | Grey's Anatomy | ABC | 11.1 | 13.3 |
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| 20. | CSI: Miami | CBS | 11.0 | 12.6 |
