American Idol grabbed the top two spots with both the advertising coveted adults 18-49 and total viewers. The beginning of the end of Michael Scott (Steve Carrell), featuring Will Ferrell led The Office to the top of the adults 18-49 heap among scripted shows. NCIS was the top scripted show with total viewers.
Primetime Broadcast Adults 18-49 viewing for the week ending April 17, 2011:
| Rank | Shows | R=Repeat S=Special P=Premiere | Net | 18-49 rating | 18-49 Viewers (000) |
| 1 | AMERICAN IDOL-WEDNESDAY | FOX | 7.3 | 9,640 | |
| 2 | American Idol-THURSDAY | FOX | 6.4 | 8,429 | |
| 3 | DANCING WITH THE STARS | ABC | 4.5 | 5,868 | |
| 4 | OFFICE | NBC | 4.0 | 5,206 | |
| 5 | NCIS | CBS | 3.9 | 5,170 | |
| 6 | Modern Family | ABC | 3.9 | 5,074 | |
| 7 | BONES | FOX | 3.5 | 4,642 | |
| 8 | Criminal Minds | CBS | 3.5 | 4,586 | |
| 9 | NCIS: LOS ANGELES | CBS | 3.3 | 4,376 | |
| 10 | HOUSE | FOX | 3.2 | 4,248 | |
| 11 | DANCING W/STARS RESULTS | ABC | 3.1 | 4,122 | |
| 12 | SURVIVOR: REDEMPTION ISLD | CBS | 3.1 | 4,011 | |
| 13 | CASTLE | ABC | 3.0 | 3,996 | |
| 14 | Family Guy | FOX | 3.0 | 3,975 | |
| 15 | HAPPY ENDINGS SP-4/13(S) | S | ABC | 2.8 | 3,618 |
| 16 | Desperate Housewives | ABC | 2.7 | 3,609 | |
| 17 | HOW I MET YOUR MOTHER | CBS | 2.7 | 3,588 | |
| 18 | EVA LUNA MON | UNI | 2.7 | 3,542 | |
| 19 | BIGGEST LOSER 11 | NBC | 2.7 | 3,539 | |
| 20 | Apprentice 11 | NBC | 2.6 | 3,461 | |
| 21 | BREAKING IN | FOX | 2.6 | 3,417 | |
| 22 | Criminal Minds: SUSPECT | CBS | 2.6 | 3,367 | |
| 23 | PARKS AND RECREATION | NBC | 2.5 | 3,352 | |
| 24 | Hawaii Five-0 | CBS | 2.5 | 3,281 | |
| 25 | BODY OF PROOF | ABC | 2.5 | 3,235 |
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Primetime Broadcast Network Total viewing (all ages) for the week ending April 17, 2011:
| Rank | Shows | R=Repeat S=Special P=Premiere | Net | # Viewers (LIVE+SD) (000) | HH RATING (LIVE+SD) | HH SHARE (LIVE+SD) |
| 1 | AMERICAN IDOL-WEDNESDAY | FOX | 23031 | 12.7 | 20 | |
| 2 | American Idol-THURSDAY | FOX | 21918 | 12.5 | 21 | |
| 3 | DANCING WITH THE STARS | ABC | 20930 | 13.1 | 20 | |
| 4 | NCIS | CBS | 19870 | 12.2 | 19 | |
| 5 | DANCING W/STARS RESULTS | ABC | 15964 | 10.2 | 15 | |
| 6 | NCIS: LOS ANGELES | CBS | 15456 | 9.5 | 14 | |
| 7 | CRIMINAL MINDS | CBS | 13585 | 8.6 | 13 | |
| 8 | CASTLE | ABC | 12329 | 7.9 | 13 | |
| 9 | BONES | FOX | 11448 | 6.8 | 11 | |
| 10 | SURVIVOR: REDEMPTION ISLD | CBS | 11086 | 6.6 | 11 | |
| 11 | BODY OF PROOF | ABC | 11061 | 7.4 | 12 | |
| 12 | Good Wife, THE | CBS | 11051 | 7.4 | 12 | |
| 13 | 60 MINUTES | CBS | 10895 | 6.9 | 13 | |
| 14 | Mentalist, THE | R | CBS | 10828 | 7.0 | 12 |
| 15 | CSI: MIAMI | CBS | 9965 | 6.1 | 10 | |
| 16 | Criminal Minds: SUSPECT | CBS | 9956 | 6.5 | 11 | |
| 17 | MODERN FAMILY | ABC | 9608 | 5.8 | 9 | |
| 18 | Hawaii Five-0 | CBS | 9541 | 5.9 | 9 | |
| 19 | DESPERATE HOUSEWIVES | ABC | 9105 | 5.9 | 9 | |
| 20 | Undercover Boss | CBS | 8951 | 5.2 | 8 | |
| 21 | HOUSE | FOX | 8927 | 5.3 | 8 | |
| 22 | Amazing Race 18 | CBS | 8779 | 5.1 | 8 | |
| 23 | CSI | R | CBS | 8101 | 5.2 | 8 |
| 24 | Blue Bloods | R | CBS | 7942 | 5.0 | 9 |
| 25 | MIKE & Molly | CBS | 7905 | 4.9 | 7 |
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Nielsen TV Ratings: ©2011 The Nielsen Company. All Rights Reserved. All numbers are live viewing plus same day DVR viewing.
