1) “Billboard Music Awards,” 8-11 p.m. Wednesday, NBC. In one packed night, we get Madonna and Mariah and Maluma and more. Halsey sings “Without Me” and also links with BTS. Other combos have Tori Kelly with Dan + Shay and (shown here) Madonna with Maluma. Also performing are Kelly Clarkson, who hosts; Mariah Carey, who gets the Icon Award; and Paula Abul, with a medley, 30 years after her debut album had four No. 1 hits. Also: Jonas Brothers, Ciara, Khalid, Lauren Daigle and Panic! At the Disco.
2) “The 100” season-opener, 9 p.m. Tuesday, CW. If you oversleep, you might miss something. Now Clarke and friends are back from a 125-year coma; colleagues feel they’ve found a planet that might support life. That’s sort of how this show started, but then there were 100 young people trying Earth; in this strong hour, the landing party has only eight, including Clarke, Bellamy and the relentlessly annoying Murphy. In the ship are Clarke’s mom and the relentlessly annoyed Octavia and Raven.
3) “iZombie” season-opener, 8 p.m. Thursday, CW. Yes, this is a big week for CW and its fantasy shows. This one, however, takes an odd detour: “iZombie” is usually propelled by iis humor and by the great bits when Liv eats the brain of the deceased and takes on its personality. Tonight, alas, there’s no body (the victim is missing) and little humor. Only Ravi (who stole her snack) changes character. Mostly, this is a rather harsh and nasty hour (continuing next week) about borders and biases and such.
4) “The Show Must Go On,” 8-10 p.m. today, ABC. “American Idol” exits its Monday spot – which is borrowed tonight by a famous “Idol” loser. Adam Lambert finished second to Kris Allen in 2009. He’s one of many – Katharine McPhee (2nd), Chris Daughtry (4th), Jennifer Hudson (7th) – who surpassed the winners. In 2014, he started touring with Queen; they’ve drawn big crowds – boosted this year by the “Bohemian Rhapsody” movie and a performance at the Oscars. This documentary traces their stories.
5) “American Spring Live,” 8 p.m. today through Wednesday, PBS, and more. For three nights, we get a mixture of live coverage and pre-taped footage, ranging from the Everglades to the Sierra Nevada Mountains. That’s part of a strong week for PBS – a compelling “Frontline,” talking to Holocaust survivors, often around age 90, at 10 p.m. Tuesday … the Estefans’ concert (see No. 8) Friday … and a change of tone for “Les Miserables” at 9 p.m. Sunday: Valjean shows Paris to the beautiful Cosette.
6) “Fosse/Verdon,” 10 p.m. Tuesday, FX. We’ve already seen that Bob Fosse could be crushed by failure: When “Sweet Charity” (1969) flopped with critics and at the box office, he was devastated. But now we see that he can’t rally handle success, either. This is 1972-73, the year of the “Cabaret” movie, “Pippin” on Broadway and “Liza With a Z” on TV. Fosse triumphs … and collapses. A closing hallucination scene – brilliantly directed by Jessica Yu – provides powerful, Fosse-quality television.
7) Miss USA pageant, 8-10 p.m. Thursday, Fox. Two decades ago, Vanessa Minnillo had a double win: Contestants voted her Miss Congeniality; judges named her Miss Teen USA. Now she’s Vanessa Lachey; for the second time, she’ll be hosting (congenially, one assumes) this pageant with her husband, pop singer Nick Lachey. This is the pageant that was dumped by NBC in 2015, after anti-Mexican comments from its then-owner, Donald Trump. After obscurity on Reelz, it moved to Fox.
8) Gershwin Prize, 9-10:30 p.m. Friday, PBS. This starts vibrantly, with the Broadway cast of “On Your Feet” … then sputters. Six people talk before returning to the music of Gloria and Emilio Estefan. Fortunately, it’s worth the wait. Often, “Gershwin Prize” has lame films and poor production. That first part is fixed this time, with a sharp film from Lin-Manuel Miranda. The so-so production is overcome by great music, including Patti LaBelle, Jose Feliciano, the Estefans and their talented daughter Emily.
9) “Saturday Night Live,” 11:29 p.m., Saturday, NBC. It was 24 years ago that Adam Sandler left “SNL,” after starring alongside Chris Farley, David Spade, Mike Myers, Dana Carvey and more. He and Farley were fired, he said later; he was perplexed at first … then became a movie star. Since then, Sandler has popped up briefly on “SNL,” but has said he would never host. Now he does; Shawn Mendes – who was born three years after Sandler left “SNL” — has his second turn as the music guest.
10) “World of Dance” finale, 8-10 p.m. Sunday, NBC. This show already has winners in tis four divisions. Now comes the key detail – picking an overall winner and handing out the million-dollar prize. The divisions are split by age (17 and under, 18 and older) and by number of people (1-4, five or more). Each of the first two seasons brought hip hop winners – two adults (Les Twins) from France and a youth group (The Lab) from West Covina, the California town “Crazy Ex Girlfriend” sang about.