1) “America’s Got Talent,” 9-11 p.m., NBC. After a summer of spectacle, the show has its 11 finalists. There are singers from Massachusetts and Indonesia, choirs from South Africa and North Carolina. There are two dance groups from Japan (including Avantgardey, the judges’ wild-card pick, shown here) and one from France, plus an Italian dog act, a Canadian comedian, a New Jersey magician and an acrobat duo from Tanzania. Now they perform and viewers vote; Wednesday has a recap at 8 and finale at 9.
2) “Dancing With the Stars” opener, 8-10:31 p.m., ABC. It’s the 32nd edition – 30 on ABC, one only on Disney+ land now one simulcast on both. Julianne Hough joins Alfonso Ribeiro as host, with her brother Derek as a judge. One contestant is a teen star (Xochitl Gomez, 17, of “Doctor Strange”); another was one a half-century ago (Barry Williams, turning 69). There are reality types, plus winners of an Oscar (Mira Sorvino) and Grammy (Jason Mraz).
3) “The Swarm,” 9 p.m., CW. In a slow and steady way, this eight-part international mini-series builds its underwater crisis, sometimes focusing on two likable young researchers. In the first hour, Leon’s girlfriend was killed by a whale attack; in the second, Charlie’s friend’s ship sank. She’s about to learn about her friend, as problems build. “Swarm” has subtly skilled actors, but requires great patience.
4) “Becoming Frida Kahlo,” 9 p.m., PBS. As the second part of this three-week documentary begins, the marriage seems like a mismatch. Diego Rivera is twice Kahlo’s age, triple her weight, thoroughly more famous. Now, however, he runs into troubles, as art and politics entwine; she begins to build her reputation as a skilled artist. It’s a strong story, told with rich detail.
5) ALSO: “The Voice,” which opened its season Monday, settles into its second night. It’s 8-9 p.m. today, then 8-10 p.m. on other Tuesdays. ABC follows “Dancing With the Stars” at 10:31 p.m. with a “Family Feud” that had people from “Dancing” and “Grand Crew.” And Hulu’s “Only Murders in the Building” is a week from its finale; last week, we learned that Loretta (Meryl Streep) was the birth mother of the victim’s adopted brother, who’s a suspect.