Saturday, March 9, 2013 ratings — New episodes: American Ninja Warrior, Cops, and 48 Hours. Episode reruns: Person of Interest, 48 Hours, Cops, The Following, Chicago Fire, and Saturday Night Live.

ABC
8pm – Once Upon a Time: (rerun) 0.5 in the demo with 2.09 million.
9pm – 20/20: (rerun) 0.8 in the demo with 4.04 million.

CBS
8pm – Person of Interest: (rerun) 0.5 in the demo with 4.04 million.
9pm – 48 Hours: (rerun) 0.7 in the demo with 4.13 million.
10pm – 48 Hours: 0.9 in the demo (-10% change) with 5.46 million.

FOX
8pm – Cops: 1.0 in the demo (0% change) with 3.34 million.
8:30pm – Cops: (rerun) 1.0 in the demo with 3.53 million.
9pm – The Following: (rerun) 0.6 in the demo with 1.87 million.

NBC
8pm – American Ninja Warrior: (compilation) 0.6 in the demo with 2.20 million.
9pm – Chicago Fire: (rerun) 0.4 in the demo with 1.90 million.
10pm – Saturday Night Live: (rerun) 0.8 in the demo with 2.40 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? Cops, 48 Hours, American Ninja Warrior, reruns, or something better?