Week’s top-10 for April 14: Earth, Easter and more

1) “Secrets of the Penguins,” 8-11 p.m. Sunday, National Geographic. Each year, near Earth Day (April 22), we get a superb James Cameron production. Previous ones eyed elephants, whales and octopuses. Now (shown here) comes the best yet. It ranges from the Arctic to a desert, from 4-foot-tall to two-foot. Young filmmaker Bertie Gregory captures rich, intimate detail.

2) “Law & Order” marathon, 8-11 p.m. Thursday, NBC. Olivia Benson (Mariska Hargitay) is everywhere. She has a crossover story — “L&O” at 8 p.m., “L&O: Special Victims Unit” (where she’s been for 26 years) at 9. Also, she’s in the second episode of the revamped “L&O: Organized Crime.” On Thursday, the first is at 10 on NBC, the first two are on Peacock.

3) “Matlock” season-finale, 9-11 p.m. Thursday, CBS. Last week, Matty had to confess to Olympia: She’s been lying, to learn which man – Olympia’s ex-husband or his dad – buried a drug report that could have saved lives. Amid a fractured friendship, the two push ahead. It’s a strong end to a great season … sort of. This offers key answers, while delaying others.

4) “American Idol,” 8-10 p.m. today, ABC. It’s the second half of Hawaii Week, with Josh Groban mentoring 12 singers. And that leads into the second hour (of eight) of “Paradise”: In a bunker city, post-apocalypse, the president has been killed. His mistress leads the investigation and his top Secret Service agent (Sterling K. Brown) is a suspect.

5) “The Cleaning Lady,” 8 p.m. Tuesday, Fox. This has already created (and killed) two interesting FBI agents. Now it has its best character yet, an assistant district attorney, full of false folksiness. Perfectly played by Robert Cicchini, he squeezes Thony … who has much to hide, including a mercy killing. It’s a terrific episode, with a jolting plot twist.

6) “Abbott Elementary” season-finale, 8:30 p.m. Wednesday, ABC. The first three seasons were filled with Emmy glory – 24 nominations (including best comedy series each year) and four wins (two for Quinta Brunson as writer and star). Now the fourth concludes with the annual field trip. This time, it’s to the Please Touch Museum, a real spot in Philadelphia.

7) “Sherlock & Daughter” debut, 9 p.m. Wednesday, CW. A whip-smart American feels she’s Sherlock Holmes’ daughter. He disagrees, but needs her. It’s a smart story that settles some things in the second week, then continues for six more. Blu Hunt (“The Originals,” “The New Mutants”), who has Lakota and Apache roots, is impressive alongside David Thewlis.

8) “NCIS: Sydney” and “Fire Country,” 8 and 9 p.m. Friday, CBS. Barely back from their two-week basketball break, both are a week from their season-finales. (They’ll be back next season.) The Sydney team faces searing heat, while probing a Marine’s death during a joint training excerise. Then a routine house fire escalates, putting a firefighter in danger.

9) Easter surge. Movie marathons start at noon ET Good Friday on UPtv (“Ten Commandments”) and 6 a.m. Easter Sunday on Turner Classic Movies (“Ben-Hur”). There’s more, including mini-series on History (“The Bible,” 2 p.m. to midnight Saturday, “Jesus: His Life,” 7 a.m. to 3 p.m. Sunday) and Handel’s “Messiah” on BYUtv (5:03 p.m. ET Saturday, 8 a.m. Sunday).

10) “The Americas” finale, 8 p.m. Sunday, NBC. For 10 gorgeous episodes, this has offered stunning views of wildlife. Now (after a rerun of the Mexico hour at 7), here’s a “making of” bonus, showing how it was filmed. Think of this (alongside “Nova” and the “Future of Nature” season-finale (9 and 10 p.m. Wednesday, PBS) as more Earth Day previews.