Kyle MacLachlan in a still from Twin Peaks. Photo: Suzanne Tenner/SHOWTIMEWhat should one expect from the surprise reboot of David Lynch’s legendary “Twin Peaks” (Showtime, 9 p.m.), picking up 25 years after it went off the air? No advance copies were made available for review and there have been only scant teases of what will transpire. Kyle MacLachlan will return as Agent Dale Cooper and the question of who exactly killed Laura Palmer hangs in the air.

In its time, “Twin Peaks” was both the most experimental and absorbing thing on network TV, which also went on to gain a wide audience anyway. The re-release of the original series in recent years has primed a whole new generation of fans. But at a time when surprising and artful TV is almost plentiful, can it possibly stand out? Post-series feature movies certainly weren’t satisfying — and those storylines are supposedly dismissed for this 18-hour revival. But there’s enough curiosity in it to at least check in to see what it has.

Here’s all Lynch would say about it when he met the press in January.

Drake and the Chainsmokers each have 22 nominations for the 2017 Billboard Awards (ABC, 8 p.m.), tying a record. Ludacris and vanessa Hudgens host the event, which offers performances from the aforementioned multi-nominees as well as Celine Dion, Cher, Bruno Mars, John Legend, Nicki Minaj with Lil Wayne, Ed Sheehan, Florida Georgia Line, Imagine Dragons, Miley Cyrus, Sam Hunt, Halsey, Julia Michaels, Lorde, Jason Derulo, David Guetta and Camila Cabello.

Joanne Froggatt, the former Mrs. Bates, plays against type on a new production on “Masterpiece” (PBS, 9 p.m., check local listings) about Britain’s first female serial killer, Mary Ann Cotton, in “Dark Angel.”

It follows the sixth season finale of “Call the Midwife” (PBS, 8 p.m.), in which they throw a wedding.

Finales come tonight for both “Madam Secretary” (CBS, 9 p.m.), “Family Guy” (Fox, 9 p.m.), “Into the Badlands” (AMC, 10 p.m.) and “Elementary” (CBS, 10 p.m.).

“Shades of Blue” (NBC, 9 p.m.) takes a pair of episodes to reach its second season finale.

They’ve successfully moved the cast to Australia on “The Leftovers” (HBO, 9 p.m.). Now what?

Dinesh is trying to break up on “Silicon Valley” (HBO, 10 p.m.).

Selena goes to Qatar on “Veep” (HBO, 10:30 p.m.).

Dogs assert their dominance on “The Simpsons” (Fox, 8 p.m.).

Unrest grows in Burgundy on “The White Princess” (Starz, 8 p.m.).

Say goodbye to “Making History” (Fox, 8:30 p.m.) the time travel comedy that was canceled.

On “American Gods” (Starz, 9 p.m.), Laura’s backstory is examined.

On “The Real Housewives of Potomac” (Bravo, 8 p.m.), Charisse tries to break news of her marriage troubles to her daughter, who apparently hasn’t been watching the show.

Mary wonders whether to keep going on “Mary Kills People” (Lifetime, 10 p.m.).

Heidi Montag visits the club on “What Happens at the Abbey” (E!, 10 p.m.).

Martha overextends herself on “Good Witch” (Hallmark, 9 p.m.).

An Iron Chef is named on the season finale of “Iron Chef Gauntlet” (Food, 9 p.m.).

Turner Classic Movies has a couple of films about journalists abroad: “Love is a Many Splendored Thing” (8 p.m.) and “The Year of Living Dangerously” (10 p.m.). Greta Garbo stars in a silent adaptation of Anna Karenina, “Love” (TCM, midnight),  followed by the 1991 Taiwanese  crime epic “A Brighter Summer Day” (TCM, 2 a.m.).

NBA playoffs has Boston at Cleveland (TNT, 8:30 p.m.).

The Stanley Cup playoffs have Ottawa at Pittsburgh (NBC, 3 p.m.).

Sunday Night Baseball has Texas at Detroit (ESPN, 8 p.m.).

Sunday Talk

ABC: National Security Adviser H.R. McMaster, Reps. Jason Chaffetz and Elijah Cummings, Sen. Ben Sasse. CBS: Sens. Dianne Feinstein and Marco Rubio. CNN: Rubio, Reps. Adam Schiff and Adam Kinzinger. Fox News: Secretary of State Rex Tillerson, Sen. John McCain,