“2022 Billboard Music Awards” (NBC, Peacock, 8 p.m. ET): Sean "Diddy" Combs hosts and Mary J. Blige collects a career achievement award at the annual shindig.
“Lucy Worsley Investigates” (PBS, 8 p.m.): What fate befell “The Princes in the Tower”? That is the question in the premiere of the British historian's new series.
“The Time Traveler’s Wife” (HBO, 9 p.m.): She can’t tell if he’s coming or going in this new fantasy drama based on Audrey Niffenegger's bestseller. “Game of Thrones’” Rose Leslie stars.
“Celebrity IOU” (HGTV, 9 p.m.): Lisa Kudrow does a good turn for a — ahem — friend in this new episode.
“Independent Lens” (PBS, 10 p.m.): Teens on a Navajo reservation share their hopes and dreams in the 2021 documentary “Scenes From the Glittering World.”
“Unfaithful: Caught in the Act” (VH1, 10 p.m.): Cheaters never prosper in this new reality series. 10 p.m. VH1
“Lionel Richie: The Library of Congress Gershwin Prize for Popular Song” (PBS, 9 p.m.): They’re partying all night long in honor of the Grammy winner in this special.