Fast National ratings for Wednesday, December 17, 2014.

The two-hour finale and hour-long reunion show for "Survivor: San Juan del Sur" led CBS to an easy Wednesday sweet in all measures.

FOX's "Hell's Kitchen" finale and NBC's Michael Buble special and "The Sing-Off" were no competition for "Survivor," nor were The CW's "The 100" and a "Greatest Holiday Commercials Countdown" special, though both did OK numbers for The CW.

On to Wednesday's ratings...

Among adults 18-49, CBS averaged a 2.2 rating for Wednesday night, tops in the key demographic. ABC, FOX and NBC all averaged a 1.3 rating in the key demo for Wednesday, followed by the 0.5 key demo rating for The CW.

Overall, CBS averaged an estimated 9.11 million viewers and a 5.2 rating/9 share for Wednesday primetime. NBC was a distant second with 5.84 million viewers and a 3.8/7, beating ABC's 4.83 million viewers and 3.2/5. FOX was fourth with 3.58 million viewers and a 2.2/4, well ahead of the 1.62 million viewers and 1.0/2 for The CW.

8 p.m. - The first hour of CBS' "Survivor" finale averaged 9.53 million viewers and a 2.3 rating among adults 18-49 to lead the 8 p.m. frame. NBC's "Michael Buble's Christmas in New York" special averaged 7.43 million viewers for second and a 1.3 key demo rating for third. ABC was third overall and second in the key demo with 5.31 million viewers and a 1.4 key demo rating for repeats of "The Middle" and "The Goldbergs." FOX's "Hell's Kitchen" finale averaged 3.6 million viewers and a 1.3 key demo rating in its first hour. On The CW, the "Greatest Holiday Commercials Countdown" special averaged 1.83 million viewers and a 0.5 key demo rating.

9 p.m. - "Survivor" rose to 9.94 million viewers and a 2.5 rating among adults 18-49 in its second hour. The first hour of NBC's "The Sing-Off" was second with 5.43 million viewers and third with a 1.4 key demo rating, compared to the 5.285 million viewers and 1.5 key demo rating averaged by "Modern Family" and "Black-ish" repeats on ABC. FOX's "Hell's Kitchen" averaged 3.56 million viewers and a 1.3 key demo rating, while "The 100" drew 1.41 million viewers and did a 0.5 key demo rating for The CW.

10 p.m. - The conclusion of the "Survivor" finale and the live reunion show averaged 7.86 million viewers and a 1.9 rating among adults 18-49 to win the 10 p.m. hour for CBS. NBC's "The Sing-Off" was down to 4.67 million viewers and a 1.2 key demo rating to finish second, holding off the 3.88 million viewers and 1.1 key demo rating for a pair of "Black-ish" repeats on ABC.

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.