Fast National ratings for Tuesday, September 16, 2014.

The two-hour performance finale of "America's Got Talent" helped NBC comfortably beat "Dancing with the Stars"-fueled ABC and "Big Brother"-led CBS on Tuesday night. 

While the network only finished fourth overall and third among young viewers, FOX got some [tempered] good news as "Utopia" ticked up week-to-week, while the network would surely want a mention that the "New Girl" and "Mindy Project" premieres were both up from spring finales (but down steeply from last year's September premieres).

This may be a good afternoon to do some ratings analysis when Live+Same Day figures come in.

On to the numbers...

Among adults 18-49, NBC averaged a 2.1 rating for Tuesday night, tops in the key demographic. CBS was well back in second with a 1.3 key demo rating, followed by FOX's 1.2 key demo rating and the 1.1 key demo rating for ABC. The CW averaged a 0.3 key demo rating for the night.

Overall, NBC averaged an estimated 9.35 million viewers and a 5.7 rating/10 share for Tuesday primetime, far ahead of the 4.1/7 and 6.18 million viewers for ABC. CBS was a close third with a 3.5/6 and 5.65 million viewers, topping FOX's 2.7 million viewers and 1.7 key demo rating. The CW averaged 1.04 million viewers and a 0.7/1.

8 p.m. - "Dancing with the Stars" results won the 8 p.m. hour overall with 12.28 million viewers and finished a close second with a 2.1 rating among adults 18-49. CBS' "Big Brother" won the hour with a 2.3 key demo rating and finished far back in second with 6.87 million viewers. NBC's "America's Got Talent" encore averaged 5.305 million viewers and a 1.2 key demo rating, topping the 2.5 million viewers and 1.0 key demo rating for FOX's "Utopia." On The CW, an "Arrow" repeat averaged 1.115 million viewers and a 0.4 key demo rating.

9 p.m. - "America's Got Talent" took over first in the 9 p.m. hour with 11.48 million viewers and a 2.5 rating among adults 18-49 for NBC. CBS' "NCIS: Los Angeles" repeat was second with 5.395 million viewers and third with a 0.9 key demo rating. ABC's "Marvel's Agents of S.H.I.E.L.D." repeat averaged 3.02 million viewers for third and a 0.7 key demo rating for fourth. FOX was second for the hour in the key demo and fourth overall with premieres for "New Girl" (3.06 million and a 1.6 key demo) and "The Mindy Project" (2.75 million and a 1.3 key demo). The CW's "Supernatural" repeat averaged 960,000 viewers and a 0.3 key demo rating.

10 p.m. - "America's Got Talent" closed primetime with 11.27 million viewers and a 2.5 rating among adults 18-49 for NBC. CBS' "Person of Interest" repeat averaged 4.69 million viewers and a 0.8 key demo rating, topping the 3.24 million viewers and 0.6 key demo rating for "20/20: From Hell" 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.