Friday, January 4, 2013 ratings — New episodes: Undercover Boss, Last Man Standing, Malibu Country, Shark Tank, 20/20, CSI: NY, Blue Bloods and Dateline. Sports: The Cotton Bowl on FOX. Episode reruns: Go On, Nikita, and Arrow.

ABC
8pm – Last Man Standing: 1.4 in the demo (-7% change) with 6.62 million.
8:30pm – Malibu Country: 1.2 in the demo (-20% change) with 6.02 million.
9pm – Shark Tank: 1.8 in the demo (0% change) with 6.34 million.
10pm – 20/20: 1.4 in the demo (-13% change) with 4.84 million.

CBS
8pm – Undercover Boss: 1.5 in the demo (-6% change) with 7.51 million.
9pm – CSI: NY: 1.4 in the demo (-7% change) with 9.18 million.
10pm – Blue Bloods: 1.3 in the demo (-7% change) with 9.95 million.

The CW:
8pm – Nikita: (rerun) 0.3 rating with 0.97 million.
9pm – Arrow: (rerun) 0.3 rating with 1.09 million.

FOX
8pm – The Cotton Bowl: 3.1 in the demo with 11.2 million.

NBC
8pm – Go On: (rerun) 0.6 in the demo with 2.72 million.
8:30pm – Go On: (rerun) 0.6 in the demo with 1.88 million.
9pm – Dateline: 1.5 in the demo (+88% change) with 5.68 million.

These are the fast affiliate ratings. The “demo” refers to the viewers in the 18-49 demographic. The percentages represent the change since the previous original episode. (Percentages aren’t given for reruns or specials.) “Million” refers to the total number of viewers.

To see past ratings for a particular show, click the show’s link. The show pages are updated with the daily final ratings when they become available. Those pages include percentage changes in both the demo and total viewership, in addition to season averages to date.

What were you watching last night? An original episode, football, reruns, or something better?