Fast National ratings for Tuesday, July 7, 2015.

"America's Got Talent" and a decent return for "Hollywood Game Night" helped NBC cruise to Tuesday night victory overall and crush the competition in the key demographic. 

The night's other notable was very solid Week 2 retention for CBS' "Zoo," which was down only 0.1 in the key demo and a few hundred-thousand viewers overall.

Let's get to the numbers...

Among adults 18-49, NBC averaged a 2.0 rating for Tuesday night, dominating in the key demographic. CBS was a distant second with a 0.9 key demo rating, followed by ABC's 0.6 key demo rating and the 0.5 key demo rating for FOX. The CW averaged a 0.4 key demo rating for the night, a number that looks to be preemption-inflated.

Overall, NBC averaged an estimated 8.71 million viewers and a 5.1 rating/9 share for Tuesday primetime. CBS was a solid second with nearly 7 million viewers and a 4.6/8 for the night. ABC's 2.27 million viewers and 1.6/3 and the 1.3/2 and 2.07 million viewers for FOX were well back. The CW averaged 1.19 million viewers and a 0.7/1, but that still looks inflated.

8 p.m. - "America's Got Talent" led the 8 p.m. hour with 9.89 million viewers and a 2.0 rating among adults 18-49 for NBC. CBS' "NCIS" repeat was second with 7.48 million viewers and a 0.8 key demo rating. ABC's repeats of "Fresh Off The Boat" and "Black-ish" averaged 2.73 million viewers, edging out the 2.46 million viewers for FOX's "Are You Smarter Than a Fifth Grader," while both networks had a 0.6 key demo rating. The CW's "The Flash" repeat averaged 1.44 million viewers and a 0.4 key demo rating.

9 p.m. - NBC stayed in first for the 9 p.m. hour with 10.825 million viewers and a 2.4 rating among adults 18-49 for "America's Got Talent." CBS' "Zoo" averaged 7.53 million viewers and a 1.1 key demo rating in a solid second. ABC's "Extreme Weight Loss" averaged 1.87 million viewers to nip the 1.67 million for FOX's "Bullseye," while the networks tied again with a 0.5 key demo rating. The CW's "iZombie" repeat averaged 941,000 viewers and a 0.4 key demo rating.

10 p.m. - CBS narrowly won the 10 p.m. hour overall with 5.99 million viewers for an "NCIS: New Orleans" repeat, which finished second with a 0.8 rating among adults 18-49. NBC's "Hollywood Game Night" premiere averaged 5.42 million viewers and an hour-winning 1.5 key demo rating. ABC's "Extreme Weight Loss" trailed with 2.2 million viewers and a 0.6 key demo rating.

All ratings information comes from preliminary Fast National Nielsen data, which includes live and same-day DVR viewing. All numbers are subject to change, particularly in the case of live events.

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.