What's On Tonight (Sunday): Secrets in black and white

Secrets of the Penguins

[*Palpatine voice*] Rise! Here's what's on television for tonight, Sunday, April 20!

Our Top Pick tonight is the docuseries Secrets of the Penguins (National Geographic & National Geographic Wild, 8, 9, & 10 p.m.). James Cameron and company are back with a fourth Secrets of docuseries, and this time they get up close and personal with penguins. I've watched a lot of nature shows in my time, and this Cameron-produced series is consistently one of the absolute best not just nature documentaries but documentaries in general. Blake Lively narrates.

Elsewhere, Mozart gets docudrama treatment, Nathan Fielder is back in Rehearsal, Tournament of Champions crowns a new champion, the Last of Us prepares for the worst, 60 Minutes catches bird flu, Dark Winds executes a warrant, Idol celebrates Easter through song, Galadriel Stineman goes Amish, and the CW dared to find Remarkable Women.

(All times are Eastern. All listings are new unless otherwise stated. For more listings, visit The Futon Critic or Zap2it.)

ON THE SITE

Cancellation League (10 a.m.): Sugarcreek Amish Points. The Points of Us. Sunday Night Points. Points of the Penguins.

EARLY STREAMING & EVENING

60 Minutes (CBS, 7 p.m. / Paramount+, Monday): First, in "Bird Flu," Bill Whitaker reports on bird flu, which has been a long emerging threat and if unchecked, could lead to a new pandemic. Then in "Demis Hassabis," Scott Pelley returns to see the artificial intelligence pioneer Demis Hassabis, who now has a Nobel Prize. Finally, in "Flight of the Monarchs," Anderson Cooper reports on the awe-inspiring and mysterious migrations of monarch butterflies.

Dark Winds (AMC+, 3 a.m. / AMC, 9 p.m.): Leaphorn and Chee retrace their steps after uncovering a vital clue. Special Agent Washington presses for more information. Manuelito moves quickly to execute a search warrant.

The Last Anniversary (AMC+, 3 a.m.): A DNA test brings answers about Enigma's parentage but the news pushes Rose further into her shell. Sophie explores her fling with Zeke and connects with Callum, while Grace tries to find some peace.

🎥 Sugarcreek Amish Mysteries (UPtv, 7 p.m.): "After Cheryl's 3-year engagement ends in a devastating breakup, her life is turned upside down when her aunt offers her an escape from Chicago to the Amish town of Sugarcreek." Then she uncovers a mystery, so I think this might be a mystery movie series pilot. Normally I wouldn't care, but Galadriel Stineman is the star. She was Axl's best girlfriend on The Middle. She also had a memorable guest spot on Shameless.✔️

MobLand (Paramount+, 3 a.m.): "Harry pays a visit to Antoine at the urging of Bella. Fisk and Mukasa trade theories. Suspecting a rat, Conrad comes to Jan for a favor. Kevin makes a startling confession."

WHAT ELSE IS ON

🏀 2025 NBA Playoffs, Game 1 (TNT & TruTV, 7 p.m.): Miami Heat at Cleveland Cavaliers

🏒 2025 NHL Playoffs, Game 1 (ESPN2, 7 p.m.): Ottawa Senators at Toronto Maple Leafs

America's Funniest Home Videos (ABC, 7 p.m. / Hulu, Monday)

📺 The Monkees (Catchy Comedy, all Sunday)

Sunday Night Baseball (ESPN, 7 p.m.): San Diego Padres at Houston Astros

🕗 8 P.M. EASTERN / 🕖 7 P.M. CENTRAL

American Idol (ABC / Hulu, Monday): Idol celebrates Easter with songs of faith from the finalists, CeCe Winans, and artist in residence Jelly Roll with Brandon Lake. Judges Lionel Richie, Carrie Underwood, and Luke Bryan also perform.

Mozart: Rise of a Genius (Ovation): LIMITED SERIES. "The life of musical genius Wolfgang Amadeus Mozart, blending interviews, reenactments, and live performances. Explore his journey from a celebrated prodigy to a rebellious outsider, set against the backdrop of flourishing European culture." Ovation airs all 3 episodes tonight.

⭐ Secrets of the Penguins (National Geographic & National Geographic Wild): SERIES PREMIERE. "Documentary exploring lives of charismatic penguins in remote, inhospitable regions worldwide with state-of-the-art technology and unparalleled access, courtesy of National Geographic." In the first episode, emperor penguins get the spotlight.✔️

🎥 Sins of My Husband (Lifetime): "When police kill serial killer Tony Dandridge, his wife, Katherine, claims she knew nothing about her husband's crimes. When the mother of a surviving victim decides to support Katherine, it soon turns into a cat and mouse game of truth and lies."

Tracker (CBS / Paramount+, Monday): Randy enlists Tracker's services to track his ex's best friend, who goes missing following a night on the town in Reno.

When Hope Calls (Great American Family): Nora and Mountie Fletcher set out together and run into trouble. Hannah Lawrence returns to town and clashes with Wyatt, the foreman of her uncle's ranch. Sam tries his hand at ranching.

WHAT ELSE IS ON

The Americas (NBC / Peacock, Monday): Making of special

90 Day Fiancé (TLC & Max)

📡 Call the Midwife (PBS)

Naked and Afraid (Discovery Channel / Max, Monday)

The Real Housewives of Atlanta (Bravo)

Tournament of Champions (Food Network): Season finale

🕘 9 P.M. EASTERN / 🕗 8 P.M. CENTRAL

Godfather of Harlem (MGM+): Bumpy must turn the Five Families against Chin when he violates their peace agreement. He tasks newcomer Frank Lucas with robbing a shipment of Gigante heroin. Elise learns of a plot to kill Omar. Stella makes a play to become family boss.

The Last of Us (HBO & Max): As a storm brews in the mountains, the people of Jackson Hole prepare for the worst amid increased sightings of Infected. Meanwhile, Abby weighs her options.

⭐ Secrets of the Penguins (National Geographic & National Geographic Wild): "Perhaps the smartest penguins live among deserts, tropics and humankind."

Suits LA (NBC / Peacock, Monday): Ted and Harvey team up to right a wrong from their past and put a monster behind bars. Stuart confronts the possibility he may have unwittingly helped a client commit a crime.

Watson (CBS / Paramount+, Monday): Watson is thrown into a detective case when he is unsure whether the patient he is treating for one of the most rare ailments in the world, alien hand syndrome, is guilty of pushing his brother in front of a bus to his death.

WHAT ELSE IS ON

🏀 2025 NBA Playoffs, Game 1 (TNT & TruTV): Golden State Warriors at Houston Rockets

The Food That Built America (History): Beer

Remarkable Women (The CW): Special

📡 Wolf Hall: The Mirror and the Light (PBS)

Suits LA (via Giphy)

🕙 10 P.M. EASTERN / 🕘 9 P.M. CENTRAL

The Equalizer (CBS / Paramount+, Monday): The Equalizer is contacted by Samantha Reed, whose father, ex-CIA agent Elijah Reed, is missing.

The Rehearsal (HBO & Max, 10:40 p.m.): SEASON PREMIERE. "Nathan decides to put his resources into something big."✔️

The Righteous Gemstones (HBO & Max): HBO says: "Following a famous televangelist family with a long tradition of deviance, greed and charitable work."

⭐ Secrets of the Penguins (National Geographic & National Geographic Wild): FINALE. "In the Southern Ocean, courageous penguins break the rules to survive."

WHAT ELSE IS ON

🏒 2025 NHL Playoffs, Game 1 (ESPN2, 7 p.m.): Minnesota Wild at Vegas Golden Knights

Bar Rescue (Paramount Network)

Dateline NBC (NBC / Peacock, Monday)

📡 Marie Antoinette (PBS)

Sister Wives (TLC)

The Rehearsal (via Giphy)

💤😴 LATE NIGHT 😴💤

YOLO: Rainbow Trinity (Adult Swim, midnight / Max, Monday): Sarah and Rachel meet up with their friends at the annual Santa Pub Crawl in Wollongong. Rachel sets out to meet Santa so he can grant her one wish before Christmas is over.

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Key Sources: The Futon Critic; IMDb; TV Passport; Zap2it
⭐: Top Pick
💲: Game show
📡: Linear broadcast

🇰🇷: Korean Drama
🎥: Movie
📺: Throwback

✔️: Video/gif/photo included

🏈🏀⚾⚽🎾🏌️🏒🏎️: Sportsballs

Happy watching, everyone!