Nielsen Top Twenty Shows Among 18-49 year olds for the week ending February 8, 2009:
| Rank | Shows | R=Repeat S=Special P=Premiere | Net | 18-49 Rating | 18-49 Viewers (000) |
| 1 | AMERICAN IDOL-TUESDAY | FOX | 10.0 | 13,193 | |
| 2 | AMERICAN IDOL-WEDNESDAY | FOX | 9.9 | 13,082 | |
| 3 | GRAMMY AWARDS(S) | S | CBS | 7.4 | 9,763 |
| 4 | GREY'S ANATOMY-THU 9PM | ABC | 5.8 | 7,704 | |
| 5 | HOUSE | FOX | 5.6 | 7,361 | |
| 6 | TWO AND A HALF MEN | CBS | 5.5 | 7,226 | |
| 7 | Private Practice | ABC | 5.3 | 7,029 | |
| 8 | FRINGE | FOX | 5.0 | 6,595 | |
| 9 | DESPERATE HOUSEWIVES | ABC | 4.9 | 6,499 | |
| 10 | LOST | ABC | 4.7 | 6,244 | |
| 11 | Lie To Me | FOX | 4.7 | 6,218 | |
| 12 | CSI: MIAMI | CBS | 4.5 | 5,889 | |
| 13 | OFFICE | NBC | 4.3 | 5,732 | |
| 14 | HOW I MET YOUR MOTHER | CBS | 4.3 | 5,647 | |
| 15 | Big Bang Theory, THE | CBS | 4.1 | 5,435 | |
| 16 | BACHELOR, THE | ABC | 4.1 | 5,363 | |
| 17 | HEROES | NBC | 4.0 | 5,257 | |
| 18 | Biggest Loser 7 | NBC | 4.0 | 5,236 | |
| 19 | Law And Order:SVU | NBC | 3.7 | 4,882 | |
| 20 | 24 | FOX | 3.7 | 4,858 |
Nielsen TV Ratings Data: ©2009 The Nielsen Company. All Rights Reserved.
All numbers are Live + SD (live, plus same day DVR viewing)
nice, a 4.0 for Heroes. If only it held those numbers.