Tuesday, December 12, 2023 ratings — New episodes: Big Brother Reindeer Games, NCIS: Sydney, Whose Line Is It Anyway?, The Great Christmas Light Fight, The Voice, and Found.   Sports: Inside the NFL.   Specials: Santa Claus Is Comin’ to Town and The Masked Singer: Holiday Sing-along.  Reruns: The Voice, Whose Line Is It Anyway?, and FBI: True.

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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?