● Arriving at a time when the ballparks are empty, “Long Gone Summer,” the latest “30 for 30” sports documentary relives one of the most memorable baseball seasons ever. In 1998, Mark McGwire of the St. Louis Cardinals and Sammy Sosa of the Chicago Cubs embarked on a historic chase of Roger Maris’ hallowed single-season home run record of 61, and the nation became obsessed. But what was a feel-good story later became tarnished by accusations of performance-enhancing drug use. The film takes viewers through the dramatic twists and turns of that landmark season and also features reflective interviews with McGwire and Sosa. (9 p.m., ESPN).
● As Season 5 of “Masterpiece: Grantchester” begins, it’s 1957, and Will Davenport has settled into his role as the local vicar, preaching to a packed church. But Will’s faith will be tested as he and detective Geordie are again reminded that there’s darkness lurking in their little corner of Cambridgeshire. (9 p.m., PBS).
● Viewers are whisked back to 1795 India in “Masterpiece: Beecham House.” It’s a lush, six-part series that follows former East India Company soldier John Beecham (Tom Bateman) who, looking for a fresh start, buys a grand mansion in Delhi. There, he and his extended family soon find themselves caught up in a mix of greed, treachery and romantic entanglements. (10 p.m., PBS).
In the new series “Generation Renovation: Lake House,” designer and builder Danielle Bryk takes on the hardest project of her career: helping her sister and brother-in-law build a fabulous lakeside dwelling. We expect lots sweat, a few tears and maybe an occasional family squabble. (9 p.m., HGTV).
● In the season premiere of “Million Dollar Listing Los Angeles,” sworn enemies Josh Altman and Josh Flagg team up and hit the road in hopes of landing a major listing in La Jolla, California. This may not end well. (9 p.m., Bravo).
● Will fingers be pointed? The latest edition of “Frontline” — “The Virus: What Went Wrong?” — examines why and how the U.S. was unprepared to battle COVID-19, despite repeated warnings of a potent contagion headed our way. (10 p.m., PBS).
As the final season of “The 100” continues, Octavia gets to know a mysterious new world. Meanwhile, Murphy and Emori (guest star Luisa d’Oliveira) play make believe. (8 p.m., the CW).
“Syfy Wire’s The Great Debate” is sure to bring out your inner geek. Each week, a panel of rotating celebrity nerds goes head to head to hash out fandom’s burning questions. Like what’s the best superhero squad? Or who’d be a worse boss, Darth Vader or the Joker? (11 p.m., Syfy).
● Brace yourself for some mud-slinging. In Season 2 of “The Politician,” Payton Hobart (Ben Platt) goes all out to unseat longtime incumbent Dede Standish (Judith Light) in the New York State Senate race. Bette Midler plays the senator’s no-nonsense chief of staff. (Netflix).
●• Feeling hungry? In “Taste the Nation with Padma Lakshmi,” the cookbook author, “Top Chef” host and producer takes viewers on a journey across America, exploring the rich and diverse food culture of various immigrant groups. (Hulu).