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Wednesday, September 20, 2023 ratings — New episodes: Big Brother, Superfan, MasterChef, and America’s Got Talent.   Reruns: The Rookie, The Conners, Swarm, Penn & Teller: Fool Us, Night Court, Chicago PD, and So Help Me Todd.

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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?