Saturday, April 13, 2013 ratings — New episodes: Bet on Your Baby, 48 Hours, and Smash. Sports: NASCAR racing. Episode reruns: NCIS, 48 Hours, The Voice, Body of Proof, and Saturday Night Live.

ABC
8pm – Bet on Your Baby: 0.6 in the demo with 2.36 million.
9pm – Bet on Your Baby: 0.6 in the demo with 2.27 million.
10pm – Body of Proof: (rerun) 0.4 in the demo with 2.53 million.

CBS
8pm – NCIS: (rerun) 0.7 in the demo with 4.86 million.
9pm – 48 Hours: (rerun) 0.8 in the demo with 4.98 million.
10pm – 48 Hours: 1.2 in the demo (+33% change) with 6.33 million.

FOX
8pm – NASCAR racing: (sports) 1.4 in the demo with 5.78 million.

NBC
8pm – Smash: 0.4 in the demo (-20% change) with 1.80 million.
9pm – The Voice: (rerun) 0.6 in the demo with 2.26 million.
10pm – Saturday Night Live: (rerun) 1.0 in the demo with 2.93 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? Originals, reruns, something from your DVR, or something better?