1) “Line of Duty,” 11 p.m., AMC. To Americans, Keeley Hawes is the star of classy PBS dramas, from “Our Mutual Friend” to the “Upstairs Downstairs” reboot and “The Durrells in Corfu.” In England, however, she often does intense crime shows. Now AMC is rerunning this terrific series. As the six-week second season begins, Hawes is a cop (shown here), suddenly getting an emergency call. The early and late scenes in this opener pack a fierce jolt; in between is a solid drama, centering on a gifted actress.
2) “Downton Abbey” (2019), 8 p.m., HBO. Speaking of PBS class, “Downton” was a prime example. This movie has all the elegance of the series, plus a busier plot. The king and queen are visiting; that spurs an assassination attempt and a power struggle between royal and manor servants. There’s more, including a possible romance and a raid of a gay club.
3) Wrestling, 8-10 p.m., Fox. Here’s a wrestling rerun. (Hey, Fox thought there would be baseball now.) We get highlights of past matches in which wrestlers used a ladder to reach a prize … or to leap from … or just to hit each otther with. (We’re starting to miss baseball more.) The action includes The Rock and John Cena – both of them movie stars now – plus Charlotte Flair, Becky Lynch and more.
4) “American Idol,” 9-11 p.m., ABC. Sunday’s episode reruns here, with the final 20 singers waiting nervously from their homes. The top 10 (via viewer votes) were named and sang; then the judges chose one more. As usual, the singers were great, but the judges went overboard with their praise. We can re-see the episode tonight … then catch a new one Sunday, with seven people surviving.
5) “SWAT,” 9 p.m., CBS. This reruns the season-opener, adding Amy Farrington as Piper Lynch, a senior officer in the Hollywood Division. She links forces to stop a serial bomber who uses drones.