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Friday, December 11, 2020 ratings — New episodes: The Christmas Caroler Challenge, MacGyver, Magnum PI, Blue Bloods, Shark Tank, 20/20, and Dateline NBC.  Sports: Friday Night Smackdown.  Reruns: Weakest Link.

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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?