1) “Bear Grylls is Running Wild,” 9 p.m., Fox. Elizabeth Banks is an actress and game-show host, but she was also the director of the successful movie, “Cocaine Bear.” Now she’s with Bear (Grylls, not Cocaine), heading into the frigid wilderness. (They’re shown here.) They try to navigate the crevasses of a melting glacier, then kayak to the site of a cold extraction.
2) Basketball, 8:30 p.m. ET, NBC and Peacock. The Spurs and Thunder collide in Game 5 (if needed) of the best-of-seven series, for a spot in the finals. NBC has the other games, if needed, Thursday and Saturday, then starts “America’s Got Talent” next Tuesday. Also today, ESPN has Colorado and Vegas in hockey at 8; it’s Game 4, for a spot in the hockey finals.
3) “Frontline” season-opener, 10 p.m., PBS. Launching its 45th season, the show looks at Donald Trump’s “war cabinet,” behind extensive military actions. That follows reruns of “Finding Your Roots” (Sharon Stone and Chrissy Teigen) and “American Experience” (Seabiscuit, the racehorse).
4) “R.J. Decker,” 8-11 p.m., ABC. This detective show debuted in March and will be back this fall, so ABC is letting us catch up. Tonight, it reruns episodes 4-6. Decker (Scott Speedman) probes a housewife murder mystery and a Little League coach whose family is being targeted. Then he helps a young woman whose boyfriend died mysteriously.
5) ALSO: CBS settles into summer reruns for its “NCIS” shows, from 8-11 p.m. At 8 are two gems directed by Clint Eastwood — “American Sniper” on AMC and “Million Dollar Baby” on Showtime. And at 9, HGTV’s “Castle Impossible” starts its second season, renovating a massive French structure.