sing off finale neil diamon TV ratings: 'Sing Off' finale wavers, 'Perfect Couples' preview tanks MondayFast National ratings for Monday, Dec. 20, 2010

The finale of “The Sing-Off” put up decent but not stellar ratings Monday — it was down from last Monday’s show and dipped in its second and third half-hours before rising a little when the winner was announced. The lead-in did next to nothing for NBC’s preview of its new comedy “Perfect Couples,” which put up weak numbers at 10 p.m.

FOX’s “Million Dollar Money Drop,” meanwhile, debuted to middling numbers, pretty much on par with what “Lie to Me” has been doing on Mondays this fall.

CBS ended up on top for the night with 7.4 million viewers and a 4.7 rating/8 share in households. NBC (6.7 million, 4.0/6) came in second. ABC (5.85 million, 3.8/6) stands in third for now, but its numbers are inflated some because affiliates in Chicago and Minneapolis aired ESPN’s “Monday Night Football” coverage. FOX took fourth with 5.3 million viewers and a 3.2/5, while The CW (931,000, 0.6/1) was way off the pace.

NBC led the adults 18-49 demographic with a 2.2 rating. CBS and FOX tied for second at 1.9. ABC averaged 1.3 in the demo and The CW 0.4.

Monday hour by hour:

8 p.m.

NBC: “The Sing-Off” finale (8.8 million viewers, 5.2/8 households)
CBS: “How I Met Your Mother” rerun (6.6 million, 4.1/7)/”Rules of Engagement” rerun (6.3 million, 3.9/6)
FOX: “Million Dollar Money Drop” premiere (5.4 million, 3.2/5)
ABC: “Skating With the Stars” (4.8 million, 3.1/5)
The CW: “90210” rerun (1.1 million, 0.7/1)

18-49 leader: “The Sing-Off” (2.7)

9 p.m.

CBS: “Two and a Half Men” rerun (9.2 million, 5.8/9)/“Mike & Molly” rerun (7.4 million, 4.7/7)
NBC: “The Sing-Off” finale (8.2 million, 4.8/7)
ABC: “Castle” rerun (5.6 million, 3.6/5)
FOX: “Million Dollar Money Drop” premiere (5.3 million, 3.3/5)
The CW: “Gossip Girl” rerun (768,000, 0.5/1)

18-49 leader: “The Sing-Off” (2.6)

10 p.m.

CBS: “Hawaii Five-0” rerun (7.5 million, 4.8/8)
ABC: “Castle” rerun (7.15 million, 4.5/8)
NBC: “Perfect Couples” preview (3.8 million, 2.4/4)/”The Office” rerun (2.2 million, 1.8/3)

18-49 leader: “Castle” (1.7)

Ratings information includes live and same-day DVR viewing. All numbers are preliminary and subject to change. Source: The Nielsen Company.

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Posted by:Rick Porter