Sunday, August 18, 2013 ratings — Finales: Whodunnit? and Crossing Lines. New episodes: Big Brother, Secret Millionaire, and Unforgettable. Sports: NFL Pre Season Football. Episode reruns: 60 Minutes, The Mentalist, America’s Got Talent, America’s Funniest Home Videos, and Castle.

ABC
7pm – America’s Funniest Home Videos: (rerun) 0.9 in the demo with 4.59 million.
8pm – Secret Millionaire: 1.2 in the demo with 4.73 million.
9pm – Whodunnit?: (finale) 1.4 in the demo with 3.67 million.
10pm – Castle: (rerun) 0.7 in the demo with 3.13 million.

CBS
7pm – 60 Minutes: (rerun) 0.9 in the demo with 7.32 million.
8pm – Big Brother: 2.0 in the demo with 6.52 million.
9pm – Unforgettable: 1.1 in the demo with 6.36 million.
10pm – The Mentalist: (rerun) 0.7 in the demo with 4.82 million.

FOX
7pm – NFL Pre Season Football: Colts vs Giants: (sports) 1.9 in the demo with 5.81 million.

NBC
7pm – America’s Got Talent: (rerun) 0.5 in the demo with 2.53 million.
9pm – Crossing Lines: (finale) 0.4 in the demo with 2.05 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.) “Millions” 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 network episodes, reruns, cable, or something else?