Here are the rankings for national prime-time network television last week (Jan. 25-31) as compiled by the Nielsen Co. They are based on the average number of people who watched a program from start to finish. Nielsen estimates there are 286 million potential viewers in the U.S. ages 2 and older. Viewership is listed in millions.
| Program | Net- work | View- ers | | Program | Net- work | View- ers |
| 1 | The 52nd Annual Grammy Awards | CBS | 25.87 |
| 2 | American Idol (Wed.) | FOX | 25.71 |
| 3 | American Idol (Tue.) | FOX | 24.45 |
| 4 | NCIS | CBS | 20.22 |
| 5 | NCIS: Los Angeles | CBS | 16.94 |
| 6 | House | FOX | 14.21 |
| 7 | Bones | FOX | 12.33 |
| 60 Minutes | CBS | 12.33 |
| 9 | Two and a Half Men | CBS | 12.07 |
| 10 | The Big Bang Theory | CBS | 11.50 |
| 11 | The Bachelor | ABC | 11.47 |
| 12 | Desperate Housewives | ABC | 11.44 |
| 13 | The Mentalist | CBS | 11.07 |
| 14 | 24 | FOX | 10.81 |
| 15 | Castle | ABC | 10.55 |
| 16 | The Good Wife | CBS | 10.02 |
| 17 | The Biggest Loser | NBC | 9.71 |
| 18 | CSI: Miami | CBS | 9.55 |
| 19 | Human Target (Tue.) | FOX | 9.26 |
| 20 | CSI | CBS | 9.14 |
| 21 | Fringe | FOX | 8.98 |
| 22 | Numb3rs | CBS | 8.71 |
| 23 | America’s Funniest Home Videos | ABC | 8.55 |
| 24 | Extreme Makeover: Home Edition | ABC | 8.54 |
| 25 | State of the Union Analysis | NBC | 8.28 |
| 26 | Ghost Whisperer | CBS | 8.20 |
| 27 | 20/20 | ABC | 8.08 |
| 28 | Medium | CBS | 8.02 |
| 29 | Brothers & Sisters | ABC | 7.65 |
| 30 | Dateline (Fri.) | NBC | 7.42 |
| 31 | Movie: “The Magic of Ordinary Days” | CBS | 7.36 |
| 32 | 48 Hours Mystery | CBS | 7.23 |
| 33 | Chuck | NBC | 6.98 |
| 34 | Law & Order | NBC | 6.80 |
| 35 | Cops (8:30 p.m.) | FOX | 6.42 |
| 36 | The Jay Leno Show (Tue.) | NBC | 6.20 |
| 37 | Family Guy | FOX | 6.19 |
| 38 | State of the Union Analysis | CBS | 6.14 |
| 39 | The Deep End | ABC | 6.09 |
| 40 | How I Met Your Mother | CBS | 5.98 |
| 41 | Cops | FOX | 5.90 |
| 42 | Modern Family (8 p.m.) | ABC | 5.85 |
| 43 | Sortilegio (Thu.) | UNI | 5.64 |
| 44 | America’s Most Wanted: America Fights Back | FOX | 5.63 |
| 45 | Sortilegio (Tue.) | UNI | 5.60 |
| 46 | Two and a Half Men (Wed.) | CBS | 5.56 |
| 47 | Accidentally on Purpose | CBS | 5.52 |
| 48 | Sortilegio (Fri.) | UNI | 5.34 |
| Sortilegio (Mon.) | UNI | 5.34 |
| 50 | Grey’s Anatomy | ABC | 5.21 |
| 51 | Law & Order: SVU (Sat.) | NBC | 5.08 |
| 52 | American Dad | FOX | 5.06 |
| 53 | The Middle | ABC | 5.05 |
| 54 | The Simpsons | FOX | 4.95 |
| 55 | The Jay Leno Show (Fri.) | NBC | 4.82 |
| The New Adventures of Old Christine | CBS | 4.82 |
| 57 | Dateline (Sun.) | NBC | 4.81 |
| 58 | En Nombre del Amor (Wed.) | UNI | 4.61 |
| 59 | The Office | NBC | 4.58 |
| 60 | Live for the Moment | CBS | 4.56 |
| 61 | Cleveland | FOX | 4.50 |
| 62 | Gary Unmarried | CBS | 4.48 |
| Mujeres Asesinas 2 | UNI | 4.48 |
| 64 | Supernanny | ABC | 4.47 |
| 65 | Shark Tank | ABC | 4.40 |
| 66 | En Nombre del Amor (Tue.) | UNI | 4.36 |
| 67 | The Jay Leno Show (Thu.) | NBC | 4.33 |
| 68 | Heroes | NBC | 4.30 |
| 69 | Private Practice | ABC | 4.29 |
| 70 | The Jay Leno Show (Mon.) | NBC | 4.26 |
| 71 | Community | NBC | 4.18 |
| 72 | Castle (Sat.) | ABC | 4.06 |
| 73 | En Nombre del Amor (Fri.) | UNI | 4.05 |
| 74 | En Nombre del Amor (Mon.) | UNI | 3.87 |
| Hasta que el Dinero nos Separe (Wed.) | UNI | 3.87 |
| 30 Rock | NBC | 3.87 |
| 77 | Hasta que el Dinero nos Separe (Mon.) | UNI | 3.83 |
| 78 | Hasta que el Dinero nos Separe Separe (Fri.) | UNI | 3.78 |
| 79 | Law & Order (Sat.) | NBC | 3.77 |
| 80 | En Nombre Del Amor (Thu.) | UNI | 3.73 |
| Hasta que el Dinero nos Separe (Thu.) | UNI | 3.73 |
| 82 | Parks and Recreation | NBC | 3.71 |
| 83 | The Vampire Diaries | CW | 3.70 |
| Hasta que el Dinero nos Separe (Tue.) | UNI | 3.70 |
| 85 | Mercy | NBC | 3.59 |
| 86 | Cougar Town | ABC | 3.47 |
| 87 | Lost | ABC | 3.45 |
| 88 | The Office (Wed.) | NBC | 3.39 |
| 89 | Kitchen Nightmares | FOX | 3.27 |
| 90 | Aqui y Ahora (Tue.) | UNI | 3.22 |
| 91 | Scrubs (8 p.m.) | ABC | 3.17 |
| 92 | Saturday Night Live Presents: Sports All-Stars | NBC | 3.06 |
| 93 | Cristina | UNI | 3.04 |
| 94 | Rosa de Guadalupe | UNI | 2.96 |
| 95 | Extreme Makeover: Home Edition (Sat.) | ABC | 2.84 |
| 96 | Supernatural | CW | 2.71 |
| 97 | Sabado Gigante | UNI | 2.59 |
| 98 | Don Francisco Presenta | UNI | 2.58 |
| 99 | Better Off Ted (8:30 p.m.) | ABC | 2.52 |
| 100 | Smallville | CW | 2.49 |
| 101 | Til Death (7:30 p.m.) | FOX | 2.43 |
| 102 | One Tree Hill | CW | 2.19 |
| Intimamente | UNI | 2.19 |
| 104 | Dollhouse | FOX | 2.18 |
| 105 | Premios Oye! (8 p.m.) | UNI | 2.17 |
| Life Unexpected | CW | 2.17 |
| 107 | Til Death | FOX | 2.09 |
| 108 | Truth in Motion: The U.S. Ski Team’s Road to Vancouver | NBC | 1.78 |
| 109 | Premios Oye! (7 p.m.) | UNI | 1.60 |
| 110 | Smallville (9 p.m.) | CW | 1.45 |
| 111 | Life Unexpected (Wed.) | CW | 1.38 |
| 112 | 90210 | CW | 0.94 |
| Network averages |
| Here is the number of viewers (in millions) that each network averaged per hour of prime time, for last week and for the season. |
| Network | Last week | Season to date |
| CBS | 12.02 | 11.8 |
|
| FOX | 9.71 | 9.86 |
|
| ABC | 6.32 | 8.83 |
|
| NBC | 5.14 | 7.61 |
|
| UNI | 3.5 | 3.51 |
