Kathryn Shattuck / New York Times
What’s on TV
DIANA, OUR MOTHER: HER LIFE AND LEGACY 10 p.m. on HBO.As the 20th anniversary of the death of Princess Diana approaches, William and Harry, her sons with Prince Charles, speak about her in depth — the first and last time they will do so publicly, they say — as they look through photo albums she created for them, reminisce about their childhood and revisit some of the places she helped through her charitable activities. “It’s really a film about love and memory, which makes it unusual as a royal film, which are often more about respect,” this documentary’s director, Ashley Gething, said in a New York Times interview. “It’s about sadness and joy and loss. On the one hand it’s very personal, but it’s also universal; you can relate to the things they remember and talk about.”
SOMEWHERE BETWEEN 10 p.m. on ABC. Paula Patton stars as Laura Price, a news producer in San Francisco who helps the police hunt down a serial killer. But when death strikes close to home, a cosmic burp results in a “Groundhog Day”-like reset, causing Laura to relive the week before the murders over and over (and over) again, and, in the process, change fate — something she soon realizes will require the ultimate sacrifice. This new thriller was adapted from “GOD’S GIFT: 14 DAYS,” a South Korean series streaming now on DramaFever.
JOE’S VIOLIN (2016) 10 p.m. on PBS (check local listings). Joseph Feingold, a 91-year-old Holocaust survivor, and Brianna Perez, a 12-year-old student from the nation’s poorest congressional district, in the Bronx, forge an improbable friendship after he donates his violin — the one he traded a carton of cigarettes for while in a displaced-persons camp in 1947 — to an instrument drive for schools.
PEOPLE OF EARTH 10:30 p.m. on TBS. Wyatt Cenac returns as Ozzie Graham, a New York reporter who last season was lured upstate to check out a support group for victims of alien abduction — deer are involved — only to discover that he might be one himself. “The second season complicates both sides of the cosmic gap,” James Poniewozik wrote in The Times of the arrival of a new boss to the alien mother ship, hovering somewhere above Earth, to deliver a dreadful performance review. “The delight of this odd, humane show is how it rearranges old alien tropes to find a new way to say what ‘Close Encounters of the Third Kind’ once did: We are not alone.”