Saturday, February 16, 2013 ratings — New episodes: American Ninja Warrior, and 48 Hours. Sports and specials: Harry Potter and the Chamber of Secrets (movie, rerun), and NASCAR. Episode reruns: Person Of Interest, Criminal Minds, Chicago Fire, and Law & Order: Special Victims Unit.

ABC
8pm – Harry Potter and the Chamber of Secrets: (movie, rerun) 0.7 in the demo with 2.19 million.

CBS
8pm – Person Of Interest: (rerun) 0.6 in the demo with 4.20 million.
9pm – Criminal Minds: (rerun) 0.7 in the demo with 4.41 million.
10pm – 48 Hours: 1.0 in the demo (-17% change) with 5.75 million.

FOX
8pm – NASCAR: (sports) 1.3 in the demo with 5.16 million.

NBC
8pm – American Ninja Warrior: (compilation) 0.6 in the demo with 1.94 million.
9pm – Chicago Fire: (rerun) 0.4 in the demo with 1.75 million.
10pm – Law & Order: SVU: (rerun) 0.7 in the demo with 2.20 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.

Here are the show season averages, grouped by network: ABC | CBS | CW | FOX | NBC

What were you watching Saturday night? NASCAR in FOX, 48 Hours, American Ninja Warrior, reruns, or something better?