Fast National ratings for Monday, December 7, 2009.
 
FOX actually got a solid audience for its Carrie Underwood holiday variety special, solid enough that we can probably expect to see the "American Idol" winner in future network programming, but the country superstar was no match for CBS' comedies, which dominated in the demo and set the network up for a comfortable Monday win.
 
Among adults 18-49, CBS did a 4.1 rating, well ahead of the 2.3 rating for FOX and ABC's 2.2 rating. NBC was fourth with a 1.5 rating, while The CW's 1.2 rating was a close fifth.
 
Overall, CBS averaged an estimated 12.2 million viewers in primetime to go with a 7.4 rating/12 share. FOX's 5.3/8 was good for second, with an average of 8.54 million viewers. ABC's 4.5/7 and the 3.8/6 for NBC followed. The CW's 1.5/2 trailed.
 
FOX started the night in first with a 5.5/9 for "Carrie Underwood: An All-Star Holiday Special." CBS' "How I Met Your Mother" and "Accidentally on Purpose" were second overall with a 5.3/8, but won the hour in the key demo with a 3.2 rating. NBC's repeat of "Law & Order: Special Victims Unit" finished third. ABC's "Santa Claus Is Comin'" was fourth with a 4.4/7, but second in the key demo. The CW's new "One Tree Hill" had a 1.6/3 for fifth.
 
CBS moved into first in commanding fashion at 9 p.m. with "Two and a Half Men" (9.0/13) and "The Big Bang Theory" (8.6/13). While "Two and a Half Men" averaged more viewers, "The Big Bang Theory" was the night's top show in the 18-49 demo with an excellent 5.7 rating, a series high. FOX's special dipped very slightly to a 5.0/8, but held onto second. ABC's "Find My Family" and NBC's "Law & Order: Special Victims Unit" repeat were third. On The CW, a new "Gossip Girl" had a 1.5/2.
 
"CSI: Miami" kept CBS in first at 10 p.m. with an 8.2/14 and a 3.8 rating in the demo. Want to know how a new "Castle" performs without "Dancing with the Stars"? The answer? A 5.4/9 and a 2.3 in the demo, better than the show did "Dancing"-free last year. NBC was third with "The Jay Leno Show."
 
All ratings information comes from preliminary Fast National Nielsen data, which includes live and same-day DVR viewing. All numbers are subject to change.