Fast National ratings for Monday, January 30, 2012.
Facing repeats on CBS and the last pre-"Voice" Monday on NBC, FOX got solid numbers for "House" and "Alcatraz"  and won the evening in key measures. 
Among adults 18-49, FOX averaged a 2.8 rating, tops in the key demographic. CBS' 2.3 rating and the 2.2 rating for ABC followed, while NBC averaged a 1.3 rating for the night. The CW trailed with a 06 key demo rating.
Overall, FOX averaged a 5.0 rating/7 share in primetime and led the way with 8.49 million viewers on average. CBS averaged 8.05 million viewers, followed closely by ABC's 7.62 million viewers. NBC was a distant fourth with a 2.9/4 and 4.62 million viewers. The CW averaged a 1.0/1 and 1.43 million viewers on Monday night.
8 p.m. - FOX's "House" started primetime in first with 8.64 million viewers and a 2.8 rating among adults 18-49 for the 8 p.m. hour. ABC's "The Bachelor" averaged 7.92 million viewers for second and a 2.5 key demo rating for third. CBS' repeats of "How I Met Your Mother" and "2 Broke Girls" finished third overall with 7.54 million viewers and second with a 2.6 key demo rating. Fourth with 6.61 million viewers and a 1.7 key demo rating was "Who's Still Standing?" on NBC. The CW's 100th episode of "Gossip Girl" averaged 1.37 million viewers and a 0.7 key demo rating.
9 p.m. - CBS moved into first overall for the 9 p.m. hour with 9.26 million viewers for repeats of "Two and a Half Men" and "Mike & Molly," which finished a close third with a 2.6 rating among adults 18-49. FOX's "Alcatraz" dipped slightly from last week (roughly in line with the dip for its "House" lead-in) and averaged 8.34 million viewers and a 2.7 key demo rating. On ABC, "The Bachelor" averaged 8.24 million viewers and a 2.7 key demo rating. NBC's hastily added repeat of "Fear Factor" -- you may have read about the donkey semen controversy -- averaged 3.97 million viewers and a 1.5 key demo rating. Trailing was "Hart of Dixie" on The CW, which averaged 1.49 million viewers and a 0.6 key demo rating.
10 p.m. - A "Hawaii Five-0" repeat averaged 7.34 million viewers and a 1.7 rating among adults 18-49 to give CBS a 10 p.m. win. ABC's "Castle" repeat was second with 6.71 million viewers and a 1.4 key demo rating. NBC's "Rock Center" departed the time period with 3.27 million viewers and a 0.8 key demo rating.
All ratings information comes from preliminary Fast National Nielsen data, which includes live and same-day DVR viewing. All numbers are subject to change.
A long-time member of the TCA Board and a longer-time blogger of "American Idol," Dan Fienberg writes about TV, except for when he writes about movies or sometimes writes about the Red Sox. But never music. He would sound stupid talking about music.