Fast National ratings for Wednesday, April 18, 2012. 
The recent across-the-boards ratings decline took a small nibble out of Wednesday numbers for "American Idol," but the FOX talent show actually added a few overall viewers in helping the network roll to another easy primetime victory.
Also of ratings note, "Revenge" had a solid return for ABC, which also saw only a moderate drop for "Don't Trust the B---- in Apartment 23," while "Survivor," "America's Next Top Model" and "Betty White's Off Their Rockers" were among the shows that saw minor demographic growth on Wednesday.
Among adults 18-49, FOX averaged a 4.7 rating for Wednesday night, far ahead of ABC's 2.4 rating and the 2.0 rating for CBS in the key demographic. NBC averaged a 1.2 key demo rating, while The CW posted a 0.5 key demo rating.
Overall, FOX averaged an estimated 16.47 million viewers and a 10.0 rating/16 share for Wednesday primetime. CBS was a distant second with a 5.0/8 and 7.87 million viewers, beating ABC's 4.5/7 and 7.04 million. NBC was fourth with a 2.9/5 and 4.42 million. The CW averaged a 0.8/1 and 1.245 million viewers for Wednesday night.
8 p.m. - The first hour of "American Idol" averaged 15.88 million viewers and a 4.6 rating among adults 18-49 for FOX. CBS' "Survivor: One World" was a distant second with 9.38 million viewers and a 2.7 key demo rating. ABC was third with a repeat of "The Middle" (4.655 million viewers and a 1.3 key demo rating) and a new "Suburgatory" (5.755 million and a 2.0 key demo). NBC was fourth with "Betty White's Off Their Rockers" (6.21 million viewers and a 1.7 key demo rating) and "Best Friends Forever" (3.15 million and a 0.9 key demo rating). The CW's "America's Next Top Model" repeat averaged 1.14 million viewers and a 0.4 key demo rating.
9 p.m. - The second hour of "American Idol" improved to 17.05 million viewers and a 4.8 rating among adults 18-49 for FOX. ABC was second with "Modern Family" (10.07 million and a 4.0 key demo) and "Don't Trust the B---- in Apartment 23" (6.59 million and a 2.6 key demo). CBS' "Criminal Minds" repeat was third with 7.49 million viewers and a 1.7 key demo rating. On NBC, "Rock Center" drew 2.87 million viewers and a 0.7 key demo rating, holding off the 1.35 million and 0.6 key demo rating for The CW's "America's Next Top Model."
10 p.m. - "Revenge" returned to ABC and won the 10 p.m. hour with 7.58 million viewers and a 2.3 rating among adults 18-49, basically flat with the show's last original episode back in February. CBS' repeat of "CSI: Crime Scene Investigation" averaged 6.74 million viewers and a 1.5 key demo rating. NBC's new "Law & Order: Special Victims Unit" was third with 5.72 million viewers and a 1.5 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.
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.