Below are the top 25 tables for both adults 18-49 and overall viewing in primetime for the week ending March 21, 2010.
American Idol of course topped both charts, and Undercover Boss was third with adults 18-49. House, The Big Bang Theory and Lost were the top scripted shows with adults 18-49, and NCIS again was the most-watched scripted show overall.
Weekly cable show ratings and overnight broadcast show ratings are also available.
Adults 18-49 viewing for the week ending March 21, 2010:
| Rank | Shows | R=Repeat S=Special P=Premiere | Net | 18-49 rating | 18-49 Viewers (000) |
| 1 | AMERICAN IDOL-TUESDAY | FOX | 8.1 | 10,626 | |
| 2 | AMERICAN IDOL-WEDNESDAY | FOX | 6.8 | 8,933 | |
| 3 | UNDERCOVER BOSS | CBS | 4.4 | 5,822 | |
| 4 | HOUSE | FOX | 4.0 | 5,276 | |
| 5 | BIG BANG THEORY, THE | R | CBS | 3.9 | 5,096 |
| 6 | TWO AND A HALF MEN | R | CBS | 3.9 | 5,092 |
| 7 | LOST | ABC | 3.9 | 5,091 | |
| 8 | AMAZING RACE 16 | CBS | 3.8 | 4,990 | |
| 9 | CBS NCAA BKBL EVETH1-3/18(S) | S | CBS | 3.7 | 4,914 |
| 10 | OFFICE | NBC | 3.6 | 4,781 | |
| 11 | CBS NCAA BSKBL CHMP-SA-4(S) | S | CBS | 3.6 | 4,772 |
| 12 | NCIS | CBS | 3.5 | 4,620 | |
| 13 | FAMILY GUY | FOX | 3.5 | 4,590 | |
| 14 | DESPERATE HOUSEWIVES | ABC | 3.5 | 4,547 | |
| 15 | CBS NCAA BSKBL CHP-EVETH2(S) | S | CBS | 3.4 | 4,475 |
| 16 | NCIS: LOS ANGELES | CBS | 3.2 | 4,164 | |
| 17 | CBS NCAA BSKBL CHP-EVETH1(S) | S | CBS | 3.2 | 4,152 |
| 18 | CBS NCAA BSKBL CHP-EVEFR2(S) | S | CBS | 3.1 | 4,077 |
| 19 | 30 ROCK | NBC | 3.0 | 3,969 | |
| 20 | 60 MINUTES | CBS | 2.9 | 3,847 | |
| 21 | CBS NCAA BSKBL CHP-EVEFR1(S) | S | CBS | 2.9 | 3,810 |
| 22 | MARRIAGE REF | NBC | 2.9 | 3,779 | |
| 23 | LAW AND ORDER:SVU | NBC | 2.8 | 3,703 | |
| 24 | Simpsons | FOX | 2.8 | 3,698 | |
| 25 | BIGGEST LOSER 9 | NBC | 2.8 | 3,662 |
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Overall viewing (all ages 2+) for the week ending March 21, 2010:
| Rank | Shows | R=Repeat S=Special P=Premiere | Net | # Viewers (LIVE+SD) (000) | HH RATING (LIVE+SD) | HH SHARE (LIVE+SD) |
| 1 | AMERICAN IDOL-TUESDAY | FOX | 22,913 | 13.0 | 21 | |
| 2 | AMERICAN IDOL-WEDNESDAY | FOX | 20,510 | 11.8 | 20 | |
| 3 | NCIS | CBS | 18,000 | 11.1 | 18 | |
| 4 | NCIS: LOS ANGELES | CBS | 15,095 | 9.4 | 15 | |
| 5 | UNDERCOVER BOSS | CBS | 14,471 | 8.6 | 14 | |
| 6 | Good Wife, THE | CBS | 13,399 | 8.6 | 15 | |
| 7 | 60 Minutes | CBS | 13,284 | 8.3 | 13 | |
| 8 | TWO AND A HALF MEN | R | CBS | 12,704 | 7.8 | 12 |
| 9 | Amazing Race 16 | CBS | 11,987 | 6.9 | 11 | |
| 10 | BIG BANG THEORY, THE | R | CBS | 11,670 | 7.2 | 11 |
| 11 | HOUSE | FOX | 11,367 | 6.8 | 11 | |
| 12 | DESPERATE HOUSEWIVES | ABC | 10,837 | 6.9 | 11 | |
| 13 | CBS NCAA BSKBL CHMP-SA-4(S) | S | CBS | 10,287 | 6.1 | 12 |
| 14 | CBS NCAA BKBL EVETH1-3/18(S) | S | CBS | 10,114 | 6.3 | 11 |
| 15 | LAW AND ORDER:SVU | NBC | 9,653 | 6.3 | 11 | |
| 16 | COLD CASE | CBS | 9,430 | 6.0 | 12 | |
| 17 | 24 | FOX | 9,010 | 5.4 | 9 | |
| 18 | CSI: MIAMI | R | CBS | 8,955 | 5.8 | 10 |
| 19 | CBS NCAA BSKBL CHP-EVETH1(S) | S | CBS | 8,897 | 5.7 | 11 |
| 20 | CBS NCAA BSKBL CHP-EVETH2(S) | S | CBS | 8,881 | 5.6 | 11 |
| 21 | LOST | ABC | 8,874 | 5.2 | 8 | |
| 22 | CBS NCAA BSKBL CHP-EVEFR1(S) | S | CBS | 8,558 | 5.4 | 11 |
| 23 | CBS NCAA BSKBL CHP-EVEFR2(S) | S | CBS | 8,209 | 5.1 | 10 |
| 24 | Human Target | FOX | 8,012 | 4.8 | 9 | |
| 25 | 20/20 SP EDITION-3/15(S) | S | ABC | 7,994 | 5.5 | 9 |
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Nielsen Ratings Data: ©2010 The Nielsen Company. All Rights Reserved. All ratings above Live+SD (live viewing plus same day DVR viewing)
