Tuesday, December 17, 2013 ratings — New episodes: Primetime: What Would You Do?, NCIS, NCIS: Los Angeles, Person of Interest, The Biggest Loser, and The Voice. Reruns: Marvel’s Agents of SHIELD, The Goldbergs, Trophy Wife, Dads, Brooklyn Nine-Nine, New Girl, The Mindy Project, Supernatural, and The Originals.

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These are the fast affiliate ratings. The percentages represent the change since the previous original episode. (Percentages aren’t given for reruns or specials.) 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 season averages to date.

What were you watching last night? Original network programming, reruns, cable, or something else?