(ABC/Richard Cartwright)

Thursday, July 20, 2023 ratings — New episodes: The Chase and Generation Gap.   Reruns: Young Sheldon, Ghosts, So Help Me Todd, CSI: Vegas, Penn & Teller: Fool Us, Walker, Password, Law & Order: SVU, Magnum PI, Press Your Luck, Alert: Missing Persons Unit, and Stars on Mars.

Note: If you’re not seeing the updated charts, please try reloading the page or go here.

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?