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Frankie Laine, Julius LaRosa, the Four Lads, the Four Freshmen and Herb Reed's Platters are a few of the musicians who perform their hits of the late 1950s and early '60s.

The Smothers Brothers and Judy Collins host a look at the evolution of modern American folk music; performers include Glenn Yarbrough, the Highwaymen, the Kingston Trio and the Limeliters.

Full-length performances from various artists of the 1950s and 1960s, including Johnny Maestro, The Duprees, Jay Black, Little Anthony & The Imperials, Ronnie Spector, Frankie Valli, Jerry Butler and more.

Frankie Laine, Julius LaRosa, the Four Lads, the Four Freshmen and Herb Reed's Platters are a few of the musicians who perform their hits of the late 1950s and early '60s.

The wombats battle sea monsters, surfing scoundrels and pointy rocks on their way to make a sandwich delivery; Mr. E. buys a robot to hand out balloons.

Lyla and her siblings figure out a new morning routine so they won't miss the bus again; Lyla wants to learn a popular clap and dance sequence -- the Carrot Cake dance.

Alma and Uncle Nestor get separated from the rest of the family on the subway; Alma and Junior are excited about their new neighbors.

Diving into the wonder and adventure of dinosaurs, spotlighting the six different species of the main characters in the series "Walking With Dinosaurs.".

Celebrity chefs and food experts celebrate Julia Child and "The French Chef" more than 50 years after its debut.

Chefs Lidia Bastianich and Jacques Pépin prepare recipes and share family stories.

Phyllis McGuire, Pat Boone and Nick Clooney host a trip back to the 1950s with a mix of live performance and archival footage featuring classic moments from artists such as Perry Como, Debbie Reynolds and the McGuire Sisters.

Spanish guitarist Benise celebrates 25 years of fan favorites as he travels to Spain, Paris, Egypt, Italy and other locations.

A behind the scenes look at "The American Revolution" with Ken Burns, Sarah Botstein and David Schmidt to learn about the production, which took nearly a decade to complete.

Lucy Worsley investigates the 18th century breakup of Britain and America, including the turning points that led to America's Declaration of Independence from Britain in 1776.

Exploring how the American Revolution affected Britain, with sabotage, espionage and political unrest reshaping the empire.

Behind the scenes with the cast and crew of "Grantchester" to explore how the series became a hit; featuring archival clips spanning 10 seasons and exclusive interviews.

Cora makes a discovery that could throw the inheritance issue into chaos. Under pressure from her aunt, Lady Rosamund Painswick, Mary keeps Matthew waiting for an answer to his proposal.

Behind the scenes with the cast and crew of "Grantchester" to explore how the series became a hit; featuring archival clips spanning 10 seasons and exclusive interviews.

Cora makes a discovery that could throw the inheritance issue into chaos. Under pressure from her aunt, Lady Rosamund Painswick, Mary keeps Matthew waiting for an answer to his proposal.

Alastair Bruce examines how aristocrats behaved in the 1900s Britain, including how they dined, dressed and interacted with servants.

Brooks the Baltimore oriole flies into Sadie's window; the crew wish there were no more wolves so they can enjoy a day at Mystic Pinecone Park.

Lyla and her siblings figure out a new morning routine so they won't miss the bus again; Lyla wants to learn a popular clap and dance sequence -- the Carrot Cake dance.

George has a lucky streak, so his friends ask him to wish for a snow day; Prunella makes the gymnastics team.

Members of the Mobile Unit get zapped into sandwiches by villain Shelly Catessan; the Mobile Unit faces a series of challenges that Orla knew would be coming.

Martin and Chris search for a creature with good hiding powers -- the stingray -- for a game of Creature Hide and Seek.

The Hunters head to a nearby mountain to learn about snow.

Lyla has to backtrack her hike at Moon Rock Cove to find her mom's missing phone; the Loops kids divide up kitchen cleaning chores between easy and hard, so everyone has an equal amount of work.

Elmo, Abby and Julia build a mini city while Grover helps Cookie Monster serve ice cream.

Cookie Monster uses his new Cookie Cart to bake for his friends; Grover tries magic to entertain his friends.

Captain Elmo's solo mission to Jupiter is interrupted when his friends join and mess up his plan; Grover tries to fix the spaceship boosters.

Director Grover has the perfect plan for his play; Tamir and Cookie Monster try to fix the suitcase.

Cookie Monster gets tired from pushing his cart, so Abby uses magic to make the cart move on its own; Grover tries to deliver boxes.

Duck Duck has a big feeling, but she doesn't know what it is; Clyde feels sad, so the pals give him time to feel better.

Rosie and Papa switch roles for the day, but it's trickier than they thought; Rosie tries to make a family tree for Valentine's Day.

The kids make their own instruments so they can participate in Señor Tapir's concert; when Elinor's dad falls asleep during a campout, the kids use flashlights to communicate to each other.

Alma and Rafia want to make an animal photo book, but the animals won't cooperate; Alma and Rafia volunteer to help Safina after she hurts her arm.

Anthropologist Niobe Thompson travels the world to uncover how the relationship between humans and horses evolved.

Anthropologist Niobe Thompson travels the world to uncover how the relationship between humans and horses evolved.

Diving into the wonder and adventure of dinosaurs, spotlighting the six different species of the main characters in the series "Walking With Dinosaurs.".

Co-anchors Amna Nawaz and Geoff Bennett and correspondents offer in-depth analysis of current events.

Finds include a Michelin Bibendum ad figure, a World War I surgical kit and a 19th century southern basket.

A traveling puppet show circa 1870; Yakama toy cradle and doll circa 1890; a 1993 Air Jordan sneaker display.

Violent protests and street demonstrations erupt when police raid New York's Stonewall Inn in 1969.

The rich history of the LGBTQ+ community's challenges and successes in the high-tech world of Silicon Valley.

Co-anchors Amna Nawaz and Geoff Bennett and correspondents offer in-depth analysis of current events.

Finds include a Michelin Bibendum ad figure, a World War I surgical kit and a 19th century southern basket.

A traveling puppet show circa 1870; Yakama toy cradle and doll circa 1890; a 1993 Air Jordan sneaker display.

British journalist Matt O'Connor-Simpson seeks to uncover how and why LA fell in love with soccer.

The crew needs to find a way to pull parade floats when Nature Cat forgets to put gas in the tractors; the gang searches for Hal's pond pals.

Lyla has to backtrack her hike at Moon Rock Cove to find her mom's missing phone; the Loops kids divide up kitchen cleaning chores between easy and hard, so everyone has an equal amount of work.

Arthur, D.W. and Buster build sand castles at the beach; Buster goes out of his way to avoid germs.

Opie hosts the Odd Squad Superfan tour but finds out a villain has joined in disguise; Orli and Ozzie must solve 37 cases in order to get access to an exclusive club.

The Kratt Bros. discover there is an old wily orca who only eats large sharks; they find this hard to believe, so with the help of Aviva's dolphin decoder, modified to speak orca, the Wild Kratts go in search of the orca who likes sharks.

The Hunters learn how temperatures can affect outdoor plants and gardens.

Lyla and Everett struggle to play Hot Cross Buns at the same tempo, and they learn how to read music; Lyla is upset when Luke's snack becomes popular.

Ronald, a meticulous, rule-following pig, and Roxy, a free-spirited musical hedgehog, explore the "wows" of one of America's most extraordinary places -- Sequoia National Park.

Daniel and his friends dance, sing and tell jokes that show their love and care for each other; Daniel hides hearts around the house to show his love for Grandpere.

Phoebe and Jay accidentally get paint on the mail and have to decode addresses; Phoebe and Jay find their parents' box of memories.

Elmo, Abby and Julia build a mini city while Grover helps Cookie Monster serve ice cream.

The Wombats build a Cause and Effect machine; Super's best friend Chanaa pays a visit.

The pals want to hear the Yodel Birds sing, but they must build them a rest nest first; Donkey and Duck Duck want to cool everyone off with lemonade.

Rosie accidentally gives away her doll Lele on Donating Day; Rosie and Galita volunteer for Seniors Day at the Nature Center.

While helping Ms. Beaver construct a community garden the kids learn about rocks; Elinor tries to make her special dumplings all by herself.

Alma wants to hang out with Eddie's friends, but doesn't like it when she starts to feel like a little kid; Junior becomes everyone's pretend little brother.

Grandpa Nat joins the kids on a night watch to determine what the mysterious light is in the sky; Molly and Tooey help Mr. Patak record a carving demonstration.

Grandmaster Flash explains to Xavier that if he wants to create new music, he must experiment; Xavier and Yadina find out there are many ways to help Brad feel better after he falls off his bike.

Art Deco travel posters; a Waltham railroad pocket watch; a Lewis and Clark map; a visit to the Ypsilanti Automotive Heritage Museum.

Cutting-edge science reveals how isolation can harm people both mentally and physically, while meaningful relationships can heal; solutions to help rebuild a more connected world.

The creation and cultural impact of the "Wishbone" children's public television series that brought classic literature to life, featuring cast, creators and behind-the-scenes stories.

Volunteers work with the Golden Gate National Recreation Area to restore a Nike missile site, which has been turned into a museum.

Co-anchors Amna Nawaz and Geoff Bennett and correspondents offer in-depth analysis of current events.

British journalist Matt O'Connor-Simpson seeks to uncover how and why LA fell in love with soccer.

Southern California history comes alive by marrying archival materials with innovative forms of documentary storytelling.

America Ferrera and Darren Criss uncover their immigrant roots.

Celebrating the 50th anniversary of Woodstock, the three-day concert at a farm in New York that marked the end of one of the most turbulent decades in American history.