Tuesday, July 17, 2013 ratings — Premieres: Perfect Score and Whose Line is it Anyway?. New episodes: America’s Got Talent, Extreme Weight Loss, and So You Think You Can Dance. Sports: 2013 MLB All-Star Game. Episode reruns: NCIS, NCIS: Los Angeles, Person of Interest, Hollywood Game Night, and Body of Proof.

ABC
8pm – Extreme Weight Loss: 1.1 in the demo with 3.45 million.
10pm – Body of Proof: (rerun) 0.7 in the demo with 2.97 million.

CBS
8pm – NCIS: (rerun) 1.3 in the demo with 8.62 million.
9pm – NCIS: Los Angeles: (rerun) 0.9 in the demo with 6.07 million.
10pm – Person of Interest: (rerun) 0.9 in the demo with 4.88 million.

The CW:
8pm – Whose Line Is It Anyway?: (premiere) 1.1 in the demo with 2.86 million.
8:30pm – Whose Line Is It Anyway?: 1.1 in the demo with 2.95 million.
9pm – Perfect Score: (premiere) 0.4 in the demo with 0.98 million.
9:30pm – Perfect Score: 0.3 in the demo with 0.80 million.

FOX
8pm – 2013 MLB All-Star Game: (sports) 2.9 in the demo with 10.28 million.

NBC
8pm – Hollywood Game Night: (rerun) 1.1 in the demo with 4.03 million.
9pm – America’s Got Talent: 2.5 in the demo with 9.83 million.

Above 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 last night? Original new episodes, reruns, or something better?