1) “Ridley,” 8 p.m., PBS. In the first two stories (spread over four Sundays), we’ve started to know Ridley (played by Adrian Dunbar, shown here). He’s a retired cop whose wife and daughter were killed. He still consults on cases, but is also an occasional crooner who co-owns a bar. Now that becomes a key element: He falls for a singer, who asks him to find her brother. It’s an emotional tale (concluding next week), backed by great music.
2) “Grantchester,” 9 p.m., PBS. Last week’s opener seemed bland enough – then ended with a jolt. Will, the crime-solving vicar, was in a dark mood; he sped down a country road on his motorcycle and accidentally killed a pedestrian. That sets up tonight’s hour, the best episode of a good series. Will deals with guilt and the possibility of a prison sentence, while friends dig into what happened.
3) “The Lazarus Project,” 9 p.m., TNT. George has pulled off an epic feat: He spurred a nuclear war, so his agency would have to turn back time, thus bringing his girlfriend back to life. (Did we mention this is science-fiction?) What could possibly go wrong? A lot, as we see tonight, setting up next week’s season-finale. A few people, like George, can sense time jumps; one is Shiv, whom George has managed to make the fall guy for everything bad.
4) “The Walking Dead: Dead City,” 9 p.m., AMC, rerunning at 10:14. Here’s another show that’s a week away from wrapping up. Tonight, Maggie and Negan plunge deeper into the city.
5) ALSO: “The Chosen” is a crowdsource-funded drama that follows Jesus’ life. Starting now, the first three seasons rerun at 8 p.m. Sundays on CW. More drama: “1883,” the “Yellowstone” prequel, airs at 8 p.m. on CMT and the Paramount Network. And “SharkFest” continues on the National Geographic Channel, while “Jaws” (1975) is 8:25 p.m. on Syfy. “Aquaman” (2018), 6 p.m., TNT, stars Jason Momoa … who hosts “Shark Week” next Sunday.