A fifth season comes for “Love Island USA” (Peacock, streaming), filmed in Fiji.

Though slated as new, the environmental series “Down to Earth with Zac Efron” (CW, 8 p.m.) actually dates back to 2020. The first episode looks at renewable energy in Iceland. 

It accompanies another new reality travel series “Fantastic Friends” (CW, 9 p.m.) in which actors and twin brothers James and Oliver Phelps, — the Weasley twins from the “Harry Potter” series — travel internationally to explore cities and take challenges. 

Two fans face off on making life-size figures of their favorite little cars on “Hot Wheels: Ultimate Challenge” (NBC, 10 p.m.).

“Iconic America: Our Symbols and Stories with David Rubenstein” (PBS, 10 p.m., check local listings) considers the American bald eagle. 

A WWE wrestler, Big E, is guest judge on “Hot Wheels: Ultimate Challenge” (NBC, 10 p.m.). 

The reunion episodes continue for “Below Deck Sailing Yacht” (Bravo, 8 p.m.). 

“The Real Housewives Ultimate Girls Trip” (Bravo, 9 p.m.) spend a second day in Thailand. 

Xanax and Tramadol are part of the “Contraband: Seized at the Border” (Discovery, 9 p.m.).

“Chopped” (CW, 8 p.m.) has chefs prepare a strange paste. 

Auditions continue on “America’s Got Talent“ (NBC, 8 p.m.). 

The Quints want to be supermodels on “Outdaughtered” (TLC, 9 p.m.). 

On “Doubling Down with the Derricos” (TLC, 9 p.m.), Darian gets her first job at a doughnut shop. 

A dude is starting to act strangely on “Caught in the Act: Unfaithful” (MTV, 9 p.m.). 

”Sharknado” (Syfy, 6 p.m.) is followed by “Sharknado 2: The Second One” (Syfy, 8 p.m.) and “Sharknado 3: Oh Hell No!” (Syfy, 10 p.m.). 

A different kind of shark is featured on Turner Classic Movies, with “The Hustler” (8 p.m.), “The Color of Money” (10:30 p.m.), “The Cincinnati Kid” (12:45 a.m.), “Mean Streets” (2:45 a.m.) and “I Promise to Pay” (4:45 a.m.). 

During the day are a series of mysteries: “The Mad Miss Manton” (6:30 a.m.), “Penguin Pool Murder” (8 a.m.), “Lured” (9:15 a.m.), “Lady of Burlesque” (11 a.m.), “The Girl was Young” (12:45 p.m.), “Obsession” (2:30 p.m.), “the Big Step” (4:15 p.m.) and “The Late Show” (6:15 p.m.). 

Baseball includes Dodgers at Baltimore (TBS, 7 p.m.) and Yankees at Angels (MLB, 9:30 p.m.).

The WNBA has Minnesota at Atlanta (NBA, 7 p.m.) and Connecticut at Phoenix (CBS Sports, 10 p.m.).

The Tour de France (Peacock, 7 a.m.) reaches Stage 16, from Passy to Combloux.

Daytime Talk

Kelly Ripa and Mark Consuelos: Margot Robbie, Stephen Curry. The Talk: Patricia Clarkson, Cristo Fernandez (rerun). Drew Barrymore: Jay Shetty (rerun). Kelly Clarkson: Luenell, Alex Aster (rerun). Jennifer Hudson: Tamar Braxton, the Isley Brothers (rerun). Tamron Hall: Leslie Rob, Jared Waters, Ruben Santana (rerun). 

Late Talk

All reruns because of the writers’ strike: Stephen Colbert: Nicolas Cage, Christine and the Queens. Jimmy Kimmel: Tiffany Haddish, The Killers. Jimmy Fallon: Margot Robbie, Bobby Moynihan, Nathaniel Ratliff & the Night Sweats. Seth Meyers: Taylor Schilling, Eddie Izzard. James Corden: Perry Mason, Matthew Rhys, Lisa Ann Walter, Greg Barris