| Shows | R=Repeat S=Special P=Premiere | Net | 18-49 Rating | 18-49 Viewers (000) | |
| 1 | AMERICAN IDOL-TUESDAY | FOX | 9.5 | 12,480 | |
| 2 | AMERICAN IDOL-WEDNESDAY | FOX | 9.1 | 11,976 | |
| 3 | DANCING WITH THE STARS | P | ABC | 6.1 | 8,019 |
| 4 | DESPERATE HOUSEWIVES | ABC | 5.1 | 6,733 | |
| 5 | GREY'S ANATOMY-THU 9PM | ABC | 5.0 | 6,593 | |
| 6 | HOUSE | FOX | 4.8 | 6,358 | |
| 7 | TWO AND A HALF MEN | CBS | 4.8 | 6,289 | |
| 8 | CSI: MIAMI | CBS | 4.3 | 5,643 | |
| 9 | CSI | CBS | 4.2 | 5,572 | |
| 10 | OFFICE | NBC | 4.1 | 5,449 | |
| 11 | SURVIVOR: TOCANTINS | CBS | 4.1 | 5,395 | |
| 12 | E.R. | NBC | 4.0 | 5,240 | |
| 13 | Biggest Loser 7 | NBC | 3.8 | 5,020 | |
| 14 | Family Guy | FOX | 3.7 | 4,871 | |
| 15 | RULES OF ENGAGEMENT | CBS | 3.7 | 4,864 | |
| 16 | HOW I MET YOUR MOTHER | CBS | 3.6 | 4,799 | |
| 17 | BROTHERS & Sisters | ABC | 3.6 | 4,768 | |
| 18 | Big Bang Theory, THE | CBS | 3.6 | 4,762 | |
| 19 | Law And Order:SVU | NBC | 3.6 | 4,757 | |
| 20 | 24 | FOX | 3.6 | 4,740 |
Nielsen Top Twenty Shows Among 18-49 year olds for the week ending March 15, 2009:
Nielsen TV Ratings Data: ©2008 The Nielsen Company. All Rights Reserved.
All numbers are Live + SD (live, plus same day DVR viewing)
kudos to cbs for (again?) getting their entire monday linup on here. hmmm… actually 8 shows on the list wew monday airings. wow, nbc didn’t suck wind as bad as it usually does with like 2 shows on the list. yay for The Office, still at #10 despite tying for a season low. when was the last time ER was that high. i think these last few weeks are gonna really inflate as people come out of the woodworks. 6 comedies on the list! c’mon networks, jump back on the laffer wagon and air more of these!
ABC Rocks!