Fast National ratings for Monday, October 8, 2012.
There was lots of good news on Monday night, as "The Voice" and "Dancing with the Stars" both saw week-to-week growth and helped carry NBC and ABC to their regular Monday split.
Also seeing Monday growth were CBS' "Mike & Molly," "Hawaii Five-0" and the endangered "Partners," plus ABC's "Castle."
The news was less good for FOX's troubled "The Mob Doctor" and The CW's impressively low-rated premieres for "90210" and the final season of "Gossip Girl."
Also down a tiny bit was NBC's "Revolution," though the freshman hit posted its smallest drops yet, which either does or doesn't count as an achievement given that its lead-in continues to rise.
Anyway... On to the numbers...
Among adults 18-49, NBC comfortably won Monday night with a 4.2 rating, far ahead of the 2.8 rating for CBS in the key demo graphic. ABC was third with a 2.2 key demo rating, beating FOX's 1.4 key demo rating. The CW averaged a 0.4 key demo rating for the night.
Overall, though, ABC averaged an estimated 12.41 million viewers and an 8.2 rating/12 share, beating NBC's 6.5/10 and 11.12 million viewers. Both networks were up from last week, but ABC still expanded its overall margin-of-victory. CBS was third with a 5.3/8 and 8.67 million viewers, far ahead of FOX's 3.2/5 and 5.27 million viewers. The CW averaged a summer-esque 883,000 viewers and a 0.6/1 for a night of in-season original programming.
8 p.m. - "Dancing with the Stars" began primetime in first overall with 12.79 million viewers, but in third with a 2.0 rating among adults 18-49. NBC's "The Voice" averaged 11.99 million viewers and an hour-winning 4.3 key demo rating for the start of its Battles. CBS was third overall and second in the demo with "How I Met Your Mother" (8.14 million viewers and a 3.2 key demo) and "Partners" (6.345 million and a 2.2 key demo). FOX's "Bones" averaged 7.09 million viewers and a 2.0 key demo rating (a hair under ABC's key demo in fourth). The CW's premiere of "90210" averaged 998,000 viewers and a 0.5 key demo rating.
9 p.m. - ABC stayed in first overall with 13.87 million viewers for "Dancing with the Stars" and also stayed in third with a 2.2 rating among adults 18-49. NBC's "The Voice" was second with 13.17 million viewers and easily won the hour with a 5.1 key demo rating. CBS stayed third overall and second in the demo with a rising "2 Broke Girls" (10.12 million viewers and a 3.7 key demo) and "Mike & Molly" (9.42 million viewers and a 3.1 key demo). FOX's "The Mob Doctor" averaged 3.46 million viewers and slipped to a 0.9 key demo rating. On The CW, the "Gossip Girl" premiere averaged 768,000 viewers and a 0.4 key demo rating. 
10 p.m. - "Castle" won the 10 p.m. hour overall with 10.56 million viewers and tied for second with a 2.2 key demo rating. CBS' "Hawaii Five-0" got a big bump to 9.01 million viewers and also did a 2.2 rating among adults 18-49. NBC's "Revolution" was down to third overall with 8.21 million viewers, but easily won the hour with a 3.1 rating among adults 18-49.