Fast National ratings for Thursday, February 11, 2010.

The two-hour launch of "Survivor: Heroes vs. Villains" drew big numbers for CBS on Thursday night. Not only did the premiere dominate its regular 8 p.m. hour, but it beat "Grey's Anatomy" at 9 p.m. and helped "The Mentalist" crush "Private Practice" at 10 p.m.

Among adults 18-49, CBS did a 4.2 rating, dominating the 3.0 rating for ABC in the key demographic. NBC was third with a 2.4 rating, with FOX's 1.8 rating and the 1.3 rating for The CW following.

Overall, CBS averaged an estimated 14.69 million viewers and an 8.6 rating/14 share. ABC's 6.1/10 and estimated audience of 9.14 million finished second. FOX was third with a 4.0/6, topping the 3.1/5 for NBC. The CW's 1.9/3 trailed.

CBS started the night in first with an 8.2/13 for "Survivor: Heroes vs. Villains," which also averaged a 4.6 demo rating. FOX's repeat of "Bones" was second with a 4.9/8. ABC's "The Deep End" was third overall, but tied for fourth in the key demo. NBC's "Community" and "Parks and Recreation" had a 3.2/5 and finished second for the hour in the 18-49 demo. The CW's "The Vampire Diaries" was on the low side with a 2.3/4 and a 1.5 demo rating.

ABC's "Grey's Anatomy" did an 8.2/13 in the 9 p.m. hour. That seems to beat the 8.0/12 for CBS' "Survivor: Heroes vs. Villains," but "Survivor" averaged nearly 1.5 million more viewers and did a 4.5 demo rating, nipping the 4.3 rating for ABC. NBC's "The Office" and "30 Rock" were third with a 4.2/6 between then. In its time period premiere, FOX's "Past Life" did a 3.1/5 and could only muster a 1.4 demo rating. The CW's "Supernatural" was fifth.

In the 10 p.m. hour, CBS' "The Mentalist" did a 9.7/17 and also won the hour in the 18-49 demo with a 3.6 rating. ABC's "Private Practice" was second with a 6.1/10. NBC's two repeats of "The Office" 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.