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"Abbott Elementary" co-showrunner Patrick Schumacker discusses his experience working with child actors and building the show's ensemble cast.

The excavation begins with the discovery of a large brick-built oven; further investigations reveal it was part of a thriving commercial bakery.

Mapping the roots of actress Lizzy Caplan and comic Hasan Minhaj, moving from shtetls in Eastern Europe to farmlands in northern India.

The Basin and Range Province; California's Death Valley; climbing into the wilderness mountain ranges of Nevada.

Mindy and Carrot enter a cooking competition and make desserts representing different planets; Jet builds an electric engine for the annual soapbox derby.

Nature Cat wants to break the record for the world's tallest snow critter, but the snow fails to stick together; the heroes protect themselves from a hurricane.

Folk singer Ella Jenkins teaches a song with movements; Fred Rogers and his grandson pretend to be elephants.

The pals help Gameshow Gator make up a new game that everyone can play; Donkey and Panda remind each other that they can cheer themselves up when they're down.

Daniel makes Miss Elaina a birthday gift; Daniel receives a gift from Grandpere.

Social, political and economic trends of American agriculture.

A South Carolina family that has been raising peaches for nearly a century; bringing in the harvest in the cranberry bogs of Massachusetts; maple sugaring in Vermont; California farmers find new overseas markets for their strawberries.

A panel of journalists provides reporting and analysis of the major stories emanating from the United States capital.

Why is democratic socialism gaining momentum? Colorado House candidate Melat Kiros makes the case, defends her criticism of Israel, and argues for a smaller Pentagon budget.

Montana PBS investigates the sources of the deregulation movement and the subsequent power crisis.

Hill initiates trade with Asia, transforming Seattle into a major port city; Hill faces Harriman in the Last Great Railroad War; Louis Hill develops Glacier National Park; Hill speaks about the environment and lobbies for war loans to allies.

A Southern couple is plagued by selfishness, alcoholism and jealousy when the wife wants to have a baby.

Futuristic storytellers Gene Roddenberry, Irwin Allen, and Rod Serling.

U.S. Winter Olympics past and present.

Vivian and Ben rebuild their restaurant; picking strawberries; coconut cornbread shortcake with basil whipped cream.

A visit to Hawaii includes swimming with sea turtles and a sunset hike into the depths of the Kilauea volcano.

Experts analyze prominent international affairs topics and America's role in a shifting world.

Exploring the Erie Canal's contributions to America with a focus on Lockport and the Flight of Five Locks.

Patience and Frankie are held hostage by an armed escaped prisoner claiming she is innocent; personal secrets start to emerge.

In the aftermath of the siege, Geordie fights for his life; Alphy tracks a fugitive through the countryside; the Grantchester family must face final questions of love, redemption and forgiveness.

Cora's mother sweeps into Downton for Matthew and Mary's wedding, but with the couple's relationship under strain they might not make it to the altar.

One Holocaust survivor wants to find the friend he left behind when he didn't move to Israel; another hopes an old photo will reunite him with his first friend.

Pete and Eliza are forced to work together while performing a retrieval of a 4-year-old boy.

Singer-songwriter and producer Finneas takes the stage to perform songs from his solo outing "For Cryin' Out Loud!".

The Bobcat Brass Trio, Sarah Stoneback, trumpet, Mike Nelson, horn, and Jeannie Little, trombone.

Weaving together performances and honest conversations about the journey from loss to hope.

Venturing into the wilds of Idaho to explore its evolving outdoor culture; ranchers and backcountry pilots share the wilderness with resettled refugees; how climate change impacts an age-old salmon fishery.

Performances include selections by Coleridge-Taylor Perkinson, Georges Bizet and Pyotr Ilyich Tchaikovsky.

An all-standing advanced strengthening workout bends, twists, and works the spine in every direction, keeping the connective tissue of the spine and back flexible and strong.

Carl takes his friends on an "Amazing Smell Tour of Fuzzytown," but Lotta doesn't agree with Carl's list of the best smells; Carl and his friends go on a camping trip.

Zadie and JunJun find multiple new uses for Sparkle Pants; Zadie, Cece, Clyde and Carly must find a game they can all play together that is fun for everyone.

Fluttering moths distract the kids when they try to sing their new Sunny Summer Song; the kids give away peaches to their friends in Animal Town.

Aviva, Martin, and Chris learn about agriculture in the animal world from Leafcutter ants in the Amazon rainforest.

Molly and Trini try to figure out how to relocate a stubborn goose; Mr. Patak's whistle disappears when he goes out of town.

While watching baby dragons for the first time, Abby, Elmo and crew join voices for a soothing bedtime bop to make sure the little beasties go to sleep.

Fluttering moths distract the kids when they try to sing their new Sunny Summer Song; the kids give away peaches to their friends in Animal Town.

Harriett encourages Donkey to try using clay in art class; Donkey and Panda do kind things all day.

A full-body workout includes pelvic and ribcage mobility exercises.

A lesson in roping and riding from rodeo champion Ricardo "Bubba" Nevárez; carne asada; cattle rancher Alvaro Bustillos; serving up some cowboy delicacies.

Spaghetti with garlic and walnut breadcrumbs; pasta with sun-dried tomato and red pepper pesto; pasta with "fake" sauce.

The meaning of a symbol of a bird dropping a bomb; a tiny swatch of tattered red fabric may be tied to the U.S. Civil War.

The ruthless realm of some of the stealthiest and cleverest insects in the animal kingdom -- from praying mantises and aquatic insects to dragonflies.

Jerry Siegel and Joe Shuster encourage Brad to believe in the power of his imagination; Edmonia Lewis inspires Xavier to create a piece of art for his mom that represents their family.

Rosie, Javi and Uncle Steve use landmarks to get to Calvin's bakery; Rosie, Iggy and Javi lose their Easter eggs.

Phoebe and Jay set a new record for the longest paper airplane fight; Phoebe and Jay learn how to build a stable pillow fort.

Lyla and Everett coach Luke, Stu and Idris in soccer drills before their first practice; Liana and Louise decide to switch rooms with Lyla and Luke.

Muffy gets opera tickets; Arthur's mom gets a new job.

Agents talk about how gadgets helped them; someone with an odd problem visits headquarters.

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

Coverage from Washington, D.C. and London, with a regular panel of guests from across the political spectrum discussing the biggest stories of the day.

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

Topps uncut card sheets from 1973; a ring collection circa 1970; a 1967 Ram Kumar oil painting.

George Patton's gold World War I trench watch; a 1949 Charles Loloma pot; a 1944 Joseph Erlanger's Nobel Prize and diploma.

A portrait of a complex father-daughter bond and the immigrant working class in America.

News. Reporting on the day's international news from London and from BBC correspondents around the world.

Christiane Amanpour leads discussions about world issues and interviews with global leaders.

Interviews with tribal officials, Indigenous newsmakers, social media influencers and features from staff and freelance journalists; Democratic and Republican commentators provide analysis on federal, state and Tribal government actions.

This daily news program, produced by Japanese public broadcaster NHK, focuses on headlines and current events in Japan and other Asian countries. English-speaking presenters also cover other areas of interest, including business news, science and technology trends, sports highlights, and global weather forecasts.

Patience and Frankie are held hostage by an armed escaped prisoner claiming she is innocent; personal secrets start to emerge.

In the aftermath of the siege, Geordie fights for his life; Alphy tracks a fugitive through the countryside; the Grantchester family must face final questions of love, redemption and forgiveness.

Cora's mother sweeps into Downton for Matthew and Mary's wedding, but with the couple's relationship under strain they might not make it to the altar.

Creating a display for the Bloomsday Race; Katie surprises a special participant.

Haitian drum lessons, dance classes and local shops in the Flatbush neighborhood of Brooklyn, N.Y.

A basic backbend; Bridge Pose; opening the shoulders and chest.

Alma visits with Granny Isa by video chat; Alma must figure out how to help Chacho have fun.

Zadie must face her fear and go to the barber for a haircut; Malik discovers smart devices have limitations.

Elinor's power goes out, making her house look different; Elinor's Frisbee gets stuck in a tree.

Elf owl helps the Kratt Brothers find Koki and Jimmy after they become stranded in the desert.

Alaska state basketball champion Kamaka Hepa offers Molly and her basketball team pointers on the court.

Papa Bear wants to teach Baby Bear Tee ball, but Baby Bear would rather prefer to draw the ball than hit it.

Miss Elaina and Daniel find a way to play in her obstacle course on their own; Daniel and O put on a magic show.

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.

Strengthening and stretching the quad muscles.

Mental illness diagnosis and competency for trial.

Honoring poet Patrick Kavanagh with a performance of "On Raglan Road" by singer Ben Reel; Carrickmacross Workhouse; the Castle Leslie in Glaslough.

Exploring the Erie Canal's contributions to America with a focus on Lockport and the Flight of Five Locks.

New Horizons prepares to fly by an object known as MU69 on Jan. 1, 2019, which is expected to be the most distant flyby in NASA's history.

Rukmini Devi reminds Xavier and Yadina why their annual family walk is special; Bob Ross shows Yadina that a small blunder can be a happy accident.

Rosie helps Mom set up for story time when the Purple Knight visits the bookstore; Rosie and Javi make a strawberry horchata stand.

Phoebe and Jay use a checklist to guide them through their tasks; Jay creates his first comic book and learns about the importance of page order.

Lyla and Stu help out when the neighborhood garbage truck malfunctions; Lyla and Louisa take a ride on the city bus and accidentally lose Stu.

Arthur and D.W. look for a place to keep cool; Grandma Thora takes in a stray dog.

All the agents want to appear on Orchid's talent show; villain report card day.

The kids learn what colors make up a rainbow just in time for a Mother's Day surprise.

Coverage from Washington, D.C. and London, with a regular panel of guests from across the political spectrum discussing the biggest stories of the day.

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

The roots of basketball pros Brittney Griner and Chris Paul.

Relationships aboard the ISS are tested when war breaks out on Earth.

Robots are first conceptualized in ancient Rome; how uses for robots have evolved over the centuries, from the calculator to the Roomba; what future robots might be able to do.

News. Reporting on the day's international news from London and from BBC correspondents around the world.

Christiane Amanpour leads discussions about world issues and interviews with global leaders.