Fast National ratings for Friday, December 25, 2009.
People have better things to do on Christmas Night than to watch TV, a fact made manifest by low across-the-board ratings on Friday. No network averaged more than 4.5 million viewers and no network pulled in more than a 1.3 rating in the key demo. 
FOX's attempt to stir up excitement with a Christmas marathon of "'Til Death" was looked at with derision, though the marathon still averaged numbers comparable to (or better than) recent marathons of "Dollhouse."
Among adults 18-49, NBC and ABC both did a 1.3 rating to win the night. CBS Was second with a 1.0 rating, followed by the 0.7 rating for FOX and The CW's 0.3 rating. 
Overall, though, CBS averaged an estimated 4.5 million viewers to go with a 2.8 rating/6 share. NBC's 2.4/5 and the 2.2/4 for ABC were close behind. FOX was fourth with a 1.5/3. The CW's 0.6/1 trailed.
NBC's reairing of its "Saturday Night Live" Christmas special won the 8 p.m. hour with a 2.6/5. ABC's "Pirates of the Caribbean" and CBS' repeat of "Ghost Whisperer" had a 2.4/5 for second (advantage ABC in both viewers and the key demo). FOX's two new episodes of "'Til Death" did a 1.4/3 for fourth. The CW's "Smallville" trailed.
CBS moved into first at 9 p.m. with a 2.8/6 for a "Medium" repeat. NBC's "SNL" special was second with a 2.5/5, with ABC's movie slipping to third. FOX's two new "'Til Death" episodes averaged a 1.5/3. The CW's encore of "Grandma Got Run Over By a Reindeer" was fifth with a 0.5/1.
A "Numb3rs" repeat did a 3.2/7 for CBS in the 10 p.m. hour. NBC's repeat of "The Jay Leno Show" had a 2.2/5 for second. ABC's movie trailed.
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.