Friday, July 21, 2017 ratings — New episodes: Masters of Illusion, Big Brother and Dateline NBC. Special: Disney’s Descendants 2. Reruns: Hawaii Five-0, Blue Bloods, America’s Got Talent, MasterChef, Beat Shazam, and Penn & Teller: Fool Us.
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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?