TV Ratings: 'Undercover Boss' Grows, But 'Shark Tank' Still Ferocious

Shark Tank Cast - H 2012

Shark Tank Cast - H 2012

Watch out -- they bite.

ABC's entrepreneurial pressure cooker Shark Tank continued its winning streak on Friday, averaging a 2.1 rating among those coveted adults 18-49 and 6.7 million total viewers. That's down two tenths of a point from last week, but still strong enough to help guide the network to a first-place win in the demo, average a 1.8 rating for the night and 6.3 million total viewers.

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Meanwhile, the second week of ABC's new comedy block featuring Last Man Standing and Malibu Country leveled things out for the Tim Allen and Reba McEntire sitcoms. Standing drew a 1.6 rating with adults 18-49, down three tenths of a point from its second season premiere, while Malibu also drew a 1.6 rating in the demo, falling from its surprisingly strong 2.2 rating debut.

CBS saw gains with Undercover Boss, pulling in a 1.7 rating among adults 18-49 and 8.2 million total viewers in its first half hour, which then grew to a 2.2 rating and 9.8 million total viewers in the second. That's up from the 1.5 rating among 18-49ers that it drew in its season premiere last week. CSI: NY was down one tenth of a point to a 1.4 rating in the demo and 9.8 million overall viewers, while at 10 p.m., Blue Bloods grew two tenths of a point to a 1.5 rating and 11.2 million total viewers.

CBS won the night in overall viewership with an average of 10 million viewers, but drew a 1.6 rating in the adults demo -- good enough for second place.

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On NBC, reruns of Go On and Guys with Kids drew a 0.6 and 0.7 among adults 18-49, respectively, while Grimm dropped one tenth of a point to earn a 1.7 rating in the demo and 5.2 million viewers. A Dateline report about a young woman's murder from To Catch a Predator's Chris Hanson drew a 1.6 average in the demo and 4.9 million viewers. The network averaged a 1.2 adults for the night and 4 million total viewers.

Fringe fell two tenths of a point to a 0.8 rating among 18-49ers for Fox, while Kitchen Nightmares grew for the network in the 8:00 p.m. hour. It averaged a 1.2 adults rating, up from last week's 1.0. Fox averaged a 1.1 demo rating for the evening and 3 million viewers, for a fourth-place finish.

On the CW, America's Top Model drew a 0.6 rating among adults 18-49 and 1.4 million overall viewers, up two tenths from last week, and Nikita fell one tenth to a 0.3. The network averaged 1.2 million viewers for the night, flat with last week.