TV Ratings: Family tree show helps NBC take a Friday win

spike-lee-who-do-you-think-you-are2.jpgFast National ratings for Friday, April 23, 2010

NBC won Friday with "Who Do You Think You Are?" and "Dateline: NBC," edging out CBS' rerun-heavy night and ABC's "Jamie Oliver's Food Revolution," which continues to see slightly dropping numbers.

NBC averaged 6.8 million viewers with a 4.6/8 household share, nearly two million ahead of the second-place finisher CBS with 5.1 million viewers and a 3.3/6. ABC took third at 3.9 million and a 2.6/5, while FOX's reruns drew 2.8 million and a 1.9/4. The CW came in last with 1.9 million viewers and a 1.2/2.

The adults 18-49 demographic went to NBC with a 1.5 rating. ABC took a 1.2 while CBS came in third with a 1.0. FOX landed just below with 0.9 and The CW with 0.8.

Friday hour by hour:

8 p.m.

NBC: "Who Do You Think You Are?" (6.3 million viewers, 4.2/8 households)
CBS: "Ghost Whisperer" rerun (4.7 million, 3.0/6)
ABC: "Wife Swap" (3.4 million, 2.2/4)
FOX: "House" rerun (3.0 million, 2.1/4)
The CW: "Smallville" (2.2 million, 1.4/3)

18-49 leader:
"Who Do You Think You Are?" (1.3)

9 p.m.

NBC: "Dateline: NBC" (6.7 million, 4.5/8)
CBS: "Medium" rerun (4.5 million, 3.0/5)
ABC: "Jamie Oliver's Food Revolution" (3.9 million, 2.5/4)
FOX: "Glee" rerun (2.6 million, 1.8/3)
The CW: "America's Next Top Model" rerun (1.5, 1.0/2)

18-49 leader:
"Dateline: NBC" (1.4)

10 p.m.

NBC: "Dateline: NBC" (7.4 million, 5.0/9)
CBS:"Miami Medical" (6.0 million, 4.0/7)
ABC: "20/20" (4.5 million, 3.0/5)

18-49 leader: "Dateline: NBC" (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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Photo credit: NBC