Friday, July 31, 2026, ratings — New episodes: 20/20, Totally Funny Animals, and Dateline NBC. All Stars, Penn & Teller: Fool Us, MasterChef, Nation’s Dumbest, Sheriff Country, Fire Country, and Boston Blue. NOTE: Ratings posted using Fast Affiliate Numbers. Note: If you do not see the updated charts, please try reloading the page or go here. The show pages are updated with the final daily ratings when they become available.