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LOS ANGELES (thefutoncritic.com) -- "Grey's Anatomy," "House," "The Office," "Lost" and "The Big Bang Theory" are among the biggest benefactors of DVR viewership according to Live+7 numbers released by Nielsen Media Research today. Through the first 28 weeks of the season (09/21/09-04/04/10), each series has added a full ratings point (about 1.32 million viewers) per episode in the key adults 18-49 demographic when the DVR audience from the first seven days of its broadcast is factored in.

On average, the 135 shows that have aired this season have gained a .38 rating (about 501,600 viewers) in said demographic per week thanks to the Live+7 numbers. That contributes to about 15.1% of their audience in the critical category. In terms of overall viewership, on average Live+7 numbers add about 854,000 additional viewers per series - or about 11.6% of their total audience within the first week of their broadcast.

Here's a breakdown of the top 20 in each category:

Average Number of Viewers (in Millions) Gained by DVR (in 7 Days) of Each Broadcast
2.865 (21.30%) - "Grey's Anatomy"
2.848 (18.50%) - "The Mentalist"
2.520 (18.50%) - "House"
2.200 (21.50%) - "Lost"
2.122 (13.80%) - "CSI: Crime Scene Investigation"
2.083 (09.10%) - "American Idol" (Wednesday)
2.053 (14.60%) - "Criminal Minds"
2.049 (10.10%) - "NCIS"
2.012 (08.20%) - "American Idol" (Tuesday)
1.975 (13.90%) - "The Big Bang Theory"
1.975 (24.50%) - "The Office"
1.945 (30.50%) - "Fringe"
1.892 (20.40%) - "Private Practice"
1.831 (18.30%) - "Castle"
1.780 (19.10%) - "V"
1.762 (13.10%) - "The Good Wife"
1.760 (17.10%) - "Bones"
1.755 (26.30%) - "Parenthood"
1.740 (17.70%) - "24"
1.737 (13.20%) - "CSI: Miami"

Average Percentage of Viewers Coming from DVR (in 7 Days) of Each Broadcast
0.779 (35.90%) - "Dollhouse"
1.945 (30.50%) - "Fringe"
0.707 (28.10%) - "Smallville"
0.584 (28.10%) - "Gossip Girl"
0.371 (27.80%) - "Melrose Place"
0.530 (26.90%) - "90210"
1.755 (26.30%) - "Parenthood"
1.332 (25.60%) - "Heroes"
1.975 (24.50%) - "The Office"
1.728 (23.50%) - "Glee"
0.849 (22.90%) - "The Vampire Diaries"
1.008 (22.60%) - "Ugly Betty"
1.339 (22.00%) - "30 Rock"
2.200 (21.50%) - "Lost"
2.865 (21.30%) - "Grey's Anatomy"
0.558 (21.10%) - "Supernatural"
1.728 (20.80%) - "FlashForward"
1.892 (20.40%) - "Private Practice"
1.780 (19.10%) - "V"
0.930 (18.80%) - "Eastwick"

Average Rating Among Adults 18-49 Gained by DVR (in 7 Days) of Each Broadcast
1.5 (30.60%) - "Grey's Anatomy"
1.2 (23.10%) - "House"
1.2 (29.30%) - "The Office"
1.1 (23.90%) - "Lost"
1.0 (18.90%) - "The Big Bang Theory"
0.9 (27.30%) - "Glee"
0.9 (25.70%) - "The Mentalist"
0.9 (09.90%) - "American Idol" (Tuesday)
0.9 (10.70%) - "American Idol" (Wednesday)
0.9 (26.50%) - "Private Practice"
0.9 (34.60%) - "Parenthood"
0.9 (24.30%) - "Modern Family"
0.8 (22.20%) - "CSI: Crime Scene Investigation"
0.8 (33.30%) - "Fringe"
0.8 (27.60%) - "30 Rock"
0.8 (21.60%) - "Criminal Minds"
0.8 (30.80%) - "FlashForward"
0.8 (18.20%) - "Desperate Housewives"
0.8 (24.20%) - "V"
0.7 (30.40%) - "Heroes"

Average Percentage of Rating Among Adults 18-49 Coming from DVR (in 7 Days) of Each Broadcast
0.4 (50.00%) - "Dollhouse"
0.4 (36.40%) - "Gossip Girl"
0.4 (36.40%) - "Smallville"
0.9 (34.60%) - "Parenthood"
0.8 (33.30%) - "Fringe"
0.8 (30.80%) - "FlashForward"
1.5 (30.60%) - "Grey's Anatomy"
0.7 (30.40%) - "Heroes"
0.3 (30.00%) - "90210"
1.2 (29.30%) - "The Office"
0.4 (28.60%) - "Ugly Betty"
0.2 (28.60%) - "Melrose Place"
0.2 (28.60%) - "'Til Death"
0.8 (27.60%) - "30 Rock"
0.9 (27.30%) - "Glee"
0.3 (27.30%) - "Better Off Ted"
0.9 (26.50%) - "Private Practice"
0.9 (25.70%) - "The Mentalist"
0.4 (25.00%) - "Law & Order"
0.3 (25.00%) - "Supernatural"
0.1 (25.00%) - "Fly Girls"