American Idol's second week took the top two spots with both adults 18-49 ratings (in a freakish dead heat with BBT for #2 in adults 18-49) and average viewership. The Big Bang Theory was the week's top scripted show with adults 18-49 and viewership.
Primetime Broadcast Adults 18-49 Viewers for the week ending January 29, 2012:
| Rank | Shows | R=Repeat S=Special P=Premiere | Net | 18-49 rating | 18-49 Viewers (000) |
| 1 | American Idol-WEDNESDAY | FOX | 6.5 | 8,300 | |
| 2 | American Idol-THURSDAY | FOX | 5.5 | 6,988 | |
| 3 | Big Bang Theory, THE | CBS | 5.5 | 6,988 | |
| 4 | NBC AFC-NFC PRO BOWL(S) | S | NBC | 4.3 | 5,501 |
| 5 | TOUCH PREVIEW 1/25 9P(S) | S | FOX | 3.9 | 5,043 |
| 6 | Criminal Minds | CBS | 3.7 | 4,695 | |
| 7 | NBC AFC-NFC PRO BOWL-PRE(S) | S | NBC | 3.6 | 4,653 |
| 8 | ROB | CBS | 3.5 | 4,485 | |
| 9 | Once Upon A Time | ABC | 3.5 | 4,456 | |
| 10 | CSI | CBS | 3.4 | 4,312 | |
| 11 | American Idol ENC-1/24 8P(S) | SR | FOX | 3.4 | 4,304 |
| 12 | HOUSE | P | FOX | 3.1 | 4,018 |
| 13 | Family Guy | FOX | 3.1 | 3,905 | |
| 14 | Alcatraz | FOX | 3.0 | 3,873 | |
| 15 | Undercover Boss | CBS | 3.0 | 3,825 | |
| 16 | Two and a Half Men | R | CBS | 2.9 | 3,727 |
| 17 | FINDER | FOX | 2.8 | 3,634 | |
| 18 | BACHELOR, THE | ABC | 2.7 | 3,459 | |
| 19 | 2 Broke Girls | R | CBS | 2.6 | 3,322 |
| 20 | Modern Family | R | ABC | 2.5 | 3,179 |
| 21 | Simpsons | FOX | 2.4 | 3,091 | |
| 22 | UFC ON FOX(S) | S | FOX | 2.4 | 3,072 |
| 23 | MIKE & Molly | R | CBS | 2.4 | 3,048 |
| 24 | American Dad | FOX | 2.4 | 3,010 | |
| 25 | How I Met Your Mother | R | CBS | 2.3 | 2,895 |
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Primetime Broadcast Total Viewership for the week:
| 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 | 19,671 | 11.1 | 17 | |
| 2 | AMERICAN IDOL-THURSDAY | FOX | 17,141 | 10.0 | 16 | |
| 3 | Big Bang Theory, THE | CBS | 16,130 | 9.7 | 15 | |
| 4 | CSI | CBS | 14,257 | 9.0 | 15 | |
| 5 | Criminal Minds | CBS | 13,815 | 8.7 | 13 | |
| 6 | Undercover Boss | CBS | 13,151 | 7.9 | 12 | |
| 7 | NCIS | R | CBS | 12,548 | 8.1 | 12 |
| 8 | NBC AFC-NFC PRO BOWL(S) | S | NBC | 12,498 | 7.3 | 11 |
| 9 | TOUCH PREVIEW 1/25 9P(S) | S | FOX | 12,013 | 7.1 | 11 |
| 10 | ROB | CBS | 11,501 | 6.8 | 10 | |
| 11 | NBC AFC-NFC PRO BOWL-PRE(S) | S | NBC | 11,386 | 6.7 | 12 |
| 12 | 60 Minutes | CBS | 11,188 | 7.1 | 11 | |
| 13 | Good Wife, THE | CBS | 11,083 | 7.2 | 11 | |
| 14 | Once Upon A Time | ABC | 10,908 | 6.3 | 9 | |
| 15 | CSI: MIAMI | CBS | 10,566 | 6.9 | 11 | |
| 16 | Person Of Interest | R | CBS | 10,544 | 6.7 | 10 |
| 17 | CASTLE | ABC | 10,047 | 6.6 | 11 | |
| 18 | Two and a Half Men | R | CBS | 9,784 | 6.1 | 9 |
| 19 | AMERICAN IDOL ENC-1/24 8P(S) | SR | FOX | 9,642 | 5.7 | 9 |
| 20 | Mentalist, THE | R | CBS | 9,641 | 6.3 | 11 |
| 21 | Alcatraz | FOX | 9,028 | 5.3 | 8 | |
| 22 | HOUSE | P | FOX | 8,764 | 5.3 | 8 |
| 23 | FINDER | FOX | 8,441 | 5.2 | 8 | |
| 24 | BACHELOR, THE | ABC | 8,301 | 5.5 | 8 | |
| 25 | MIKE & Molly | R | CBS | 8,250 | 5.2 | 8 |
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Nielsen TV Ratings: ©2012 The Nielsen Company. All Rights Reserved. All numbers are live viewing plus same day DVR viewing.
