‘Grantchester’ Finale, ‘Lioness’ Roars Back, Dominic Monaghan in ‘Librarians,’ Summer Under the Stars

Grantchester

SUNDAY: After 11 seasons, the genteel Masterpiece mystery series ends with crime-solving vicar Alphy Kottaram (Rishi Nair) struggling with his faith as his best friend, Detective Inspector Geordie Keating (Robson Green), lies in the hospital after taking a bullet. While he and Geordie’s loved ones keep vigil, the search ensues for the shooter while Alphy ponders the merciful principle of “love the sinner, hate the sin.” In keeping with the show’s tone, the series finale is anything but a downer, as Alphy and others learn once again to appreciate what it is to be part of an extended chosen family. It really does take a village, and we’ll miss this one.

Lioness

SUNDAY: Taylor Sheridan’s military spy drama is back in taut form for a third season, where things get more personal than ever for CIA team leader Joe (Oscar winner Zoe Saldaña). The timely opener sends her and her Lioness team to war-torn Ukraine on a risky mission, where they witness first-hand a new sort of conflict that combines drone technology with trench warfare. “It’s like World War I and Star Wars slammed into each other,” says one of her colleagues. Joe’s always been able to separate her domestic home life from her perilous profession, but that’s about to change.

The Librarians: The Next Chapter

SUNDAY: The fantasy spinoff returns for a second season, with Lost’s Dominic Monaghan adding some magic as the legendary wizard Merlin. He crosses paths with the Librarians — Vikram (Callum McGowan), Lysa (Olivia Morris) and Connor (Bluey Robinson), and their Guardian Charlie (Jessica Green) — when they’re sent to an international boarding school to check out an incident fueled by intense rage. Can they trust their Arthurian-era acquaintance? Time will tell.

Summer Under the Stars

SATURDAY & SUNDAY: As is TCM’s Summer Under the Stars tradition, each day in August brings a 24-hour tribute to a different film legend. Some are new to the channel — the late Diane Keaton will be honored for the first time on Thursday — but many are longtime favorites, including Saturday’s first recipient, Doris Day. The singer-actress is represented by musicals (starting early with 1948’s Romance on the High Seas), comedies (1961’s Lover Come Back, costarring her frequent partner Rock Hudson, leads off prime time at 8/7c) and thrillers, including 1960’s Midnight Lace (10/9c) and Alfred Hitchcock’s 1956 remake of The Man Who Knew Too Much (midnight/11c). Sunday’s star is one of Hollywood’s greatest: Humphrey Bogart.

Naked and Afraid: Shipwrecked

SUNDAY: What would Robinson Crusoe think? With Shark Week ending Saturday, one of the channel’s more notorious franchises returns with a twist. A dozen Naked and Afraid all-stars once again bare all but are surprised when their new adventure begins quite suddenly after they’re set adrift overnight to start a survival battle on a remote island in the Philippines. Lost in the “Bermuda Triangle of Southeast Asia,” which has claimed many a shipwreck, the 12 veterans form four groups of three, scavenging to build shelter and make tools while dealing with sharks, stingrays, sea snakes and toxic box jellyfish. Each team has but one piece of a map that can lead them to the place where they can be rescued on Day 35 — if they last that long.

INSIDE WEEKEND TV:

• Great White Highway (Saturday, 8/7c, Discovery): Shark Week ends with two new specials. The first follows shark scientists as they attempt to tag great whites that are migrating along the East Coast. In Thresher Shark: Stun to Kill (9/8c), shark experts dive into treacherous conditions to observe the lethal tail action of thresher sharks in shallow water.
• Toast to Italy (Saturday, 8/7c, Hallmark Channel): Settle in with your favorite vintage for the romance between Jenny (Torrey DeVitto) and Arrigo (Will Kemp), two wine connoisseurs searching Italy for a special bottle of vino.
• A Prince in Paradise: A Royal Wedding (Saturday, 8/7c, Great American Family): Mitchell Bourke and Rhiannon Fish return for the third film in the Prince in Paradise series as Prince Alexander and his commoner soulmate Olivia, who are headed to the altar unless ancient laws get in the way, forbidding such a union.
• Killer Clown (Saturday, 8/7c, Lifetime): Sara Paxton stars in a thriller as a woman whose investigation into the long-ago cold case of her mother’s murder by the titular villain makes her the target of a copycat stalker.
• Patience (Sunday, 8/7c, PBS): The mystery series’ second season ends with Patience (Ella Maisy Purvis) and DI Frankie (Jessica Hynes) held hostage in the records vault by a woman falsely imprisoned for 15 years, urging the autistic sleuth to find evidence to clear her name before the police swoop in and make matters worse.
• House of the Dragon (Sunday, 9/8c, HBO): Longtime HBO watchers know to expect big moves in the penultimate episode of every season. That’s certainly the case this week. Keep your eyes on those unpredictable dragons.
• Decades in Sports (Sunday, 9/8c, CNN): A docuseries revisits milestones in sports history by the decade, starting with the 1970s and then looking back to the 1960s (10/9c).
• The Walking Dead: Dead City (Sunday, 9/8c, AMC): While Maggie (Lauren Cohan) and her new friend Renata (Aimee Garcia) work to build a better post-apocalypse New York City, Negan (Jeffrey Dean Morgan) argues that won’t be possible until they take down the wretched Duma (Lisa Emery).
• The Westies (Sunday, 9/8c, MGM+): When West Side boss Eamon Sweeney (J.K. Simmons) gives Jimmy (Tom Brittney) the OK to traffic cocaine, that only inflames their rivalry with John Gotti (Hamish Allan-Headly).
• The Megabrands That Built America (Sunday, 10/9c, History Channel): The fourth season opens with a focus on automakers as they adapt the design of military vehicles into the all-purpose SUV.
• Unknown Serial Killers of America (Sunday, 10/9c, Oxygen): The true-crime series’ second season opens with an account of the murder spree of “Cross Country Killer” Glen Rogers.