Fast National ratings for Monday, April 30, 2012.
 
NBC's "The Voice" suffered another week of Monday declines, allowing CBS to sneak in and reclaim the 18-49 demographic for the first time since the singing competition returned. Meanwhile, despite declines of its own, ABC's "Dancing with the Stars" and "Castle" completed a comfortable overall sweep.
 
Among adults 18-49, CBS averaged a 3.1 rating, beating NBC's 2.9 rating in the key demographic. ABC was third with a 2.6 rating, followed by FOX's 2.0 rating. The CW averaged a 0.6 key demo rating for Monday night.
 
Overall, though, ABC averaged an estimated 14.35 million viewers and a 9.4 rating/14 share for Monday primetime. CBS was far back in second with 10 million viewers and a 6.2/10, well ahead of the 4.9/8 and 8.07 million viewers for NBC. FOX was fourth with a 4.3/7 and 6.79 million viewers. The CW averaged a 0.9/1 and 1.18 million viewers.
 
[Univision averaged 3.89 million viewers and a 1.5 rating among adults 18-49 for Monday.]
 
8 p.m. - "Dancing with the Stars" started primetime in first for ABC with 15.01 million viewers, coming in third with a 2.5 rating among adults 18-49. NBC's "The Voice" was far back in second overall with 9.23 million viewers and also finished second for the hour with a 3.3 key demo rating. CBS was first in the key demographic and third overall with "How I Met Your Mother" (7.89 million viewers and a 3.2 key demo) and "2 Broke Girls" (9.135 million viewers and a 3.5 key demo). FOX's "Bones" averaged 7.01 million viewers and a 1.9 key demo rating, both down from last week. The CW's "Gossip Girl" averaged 1.05 million viewers and a 0.6 key demo rating.
 
9 p.m. - ABC stayed in first overall in the 9 p.m. hour with 16.67 million viewers for "Dancing with the Stars," which stayed third with a 2.8 rating among adults 18-49. CBS was second overall and second in the key demo with "Two and a Half Men" (11.25 million viewers and a 3.7 key demo rating) and "Mike & Molly" (10.23 million and a 3.2 key demo rating). NBC's "The Voice" was third overall with 9.58 million viewers and won the hour with a 3.6 key demo rating. FOX's "House" averaged 6.57 million viewers and a 2.1 key demo rating in fourth. The CW's "Hart of Dixie" was up a hair with 1.31 million viewers and a 0.6 key demo rating.
 
10 p.m. - "Castle" got a small zombie bump with 11.38 million viewers and a 2.4 rating among adults 18-49. CBS' "Hawaii Five-0" got only a small bump from the start of its "NCIS: Los Angeles" crossover and averaged 10.76 million viewers and an hour-winning 2.5 key demo rating. NBC's "Smash" dropped to 5.4 million viewers and a 1.8 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.