Tonight is the only night on Turner Classic Movies’ month-long Summer Under the Stars to feature two stars instead of one.

But Bud Abbott and Lou Costello were a team, and you might be surprised at how many movies they actually made. The Abbott and Costello run begins with “African Screams” (6 a.m.) and continues with “Jack and the Beanstalk” (7:30 a.m.), “Bud Abbott and Lou Costello in Hollywood” (9:15 a.m.), “Rio Rita” (11 a.m.), “Lost in a Harem” (1 p.m.), “Ride ‘Em Cowboy” (2:45 p.m.), “The Time of Their Lives” (4:30 p.m.), “Buck Privates” (6:15 p.m.), “Abbott and Costello Meet Frankenstein” (8 p.m.), “Abbott and Costello Meet the Invisible Man” (9:45 p.m.), “Abbott and Costello Meet the Mummy” (11:30 p.m.), “Abbott and Costello Meet Dr. Jekyll and Mr. Hyde” (1:15 a.m.) and “Abbott and Costello Meet Captain Kidd” (2:45 a.m.).

Track & field and diving help close out the final night of prime time competition in the 2021 Tokyo Olympics (NBC, 8 p.m.). 

The two short documentaries on CNN Films Shorts (CNN, 9 p.m.) concern doomsday preppers in South Dakota and a group of Black scuba divers who search for shipwrecked slave ships. 

“Eden: Untamed Planet” (BBC America, AMC, 8 p.m.) explores the rolling grasslands of East Africa’s Luangwa Valley. 

In the made-for-TV romance “The 27-Hour Day” (Hallmark, 9 p.m.) Autumn Reeser plays an executive who needs to take a break. Andrew Walker plays her new beau.