1) “America’s National Parks,” 8 and 9 p.m., National Geographic Channel; rerunning at midnight and 1 a.m. We start in the Everglades, the only place in the world to have both alligators and crocodiles. (Yes, we’re told, that’s a good thing.) Then it’s on to the Grand Canyon (shown here) – 277 miles long, with life ranging from elk to soaring condor. This is the start of a five-night, nine-hour series, narrated by Garth Brooks, with gorgeous visions of semi-wild worlds.
2) “The Bachelorette,” 8-10 p.m., ABC. There’s a brief pause for this “Men Tell All” episode; then things can get serious (and sexual). On the next two Mondays, the women will each invite three guys for separate, overnight dates; guys tend to be agreeable to this. Rachel Recchia, 25, a flight instructor, has Zach Shallcross, Tino Franco and Aven Jones; Gabby Windey, 31, an intensive-care nurse, has Erich Schwer, Jason Alabaster and Johnny DePhillipo.
3) “American Ninja Warrior,” 8-10 p.m., NBC. Here’s the final piece of the three-week finals, from Las Vegas. Next week, the show has its second special that lets families compete on an obstacle course.
4) “Kevin Can F Himself,” 9 p.m., AMC. This odd hybrid jumps between viewing a woman’s desperate world as a deliberately bad comedy and as a solid drama. Now the drama part is taking over: Allison (Annie Murphy) hired someone who then failed to kill her blowhard husband. Her friend Patty knows this; so does Patty’s dim brother, whom they’re trying to shush. The comedy parts remain awful, but Murphy makes the drama feel quietly involving.
5) “Keep This Between Us,” 9 and 10 p.m., Freeform. Here’s the first half of a four-hour documentary, which concludes Tuesday. Tonight, a woman ponders an inappropriate relationship she had long ago, with her teacher. She decides to confront the issue.