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How discoveries over the past 50 years have revolutionized people's understanding of the universe.

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

Edmond locates Gaston, Villefort's illegitimate child, who has grown up to be a thief; Danglars discovers Fernand's treacherous deeds in Algeria and reveals all to the press.

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

Celebrating the life and career of actor Dick Van Dyke on his 100th birthday; featuring never-before-seen footage, photos and home movies that detail his legacy in show business.

Alastair Bruce explores the social protocol of aristocrats in 1900s Britain; interviews with cast members, including Hugh Bonneville and Michelle Dockery.

Lyla and Luke clean Stu without a bath; Lyla and Ale find a way to protect the callaloo plants from stink bugs.

Martin encounters a lost colony of black-footed ferrets.

Arthur's not sure what to make of the new baby; D.W. considers running away to Button Island.

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

Lyla and Luke clean Stu without a bath; Lyla and Ale find a way to protect the callaloo plants from stink bugs.

Carl and his friends clean up the Fuzzytown Park; Carl accidentally breaks the birthday present Sheldon planned to give his mom.

Daniel visits the post office and learns how letters are sorted and mailed, then sends a letter to Dad; Daniel and Dad Tiger surprise Mom with banana bread.

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

Reporters Elmo and Abby offer strategies to Nursery Rhyme characters experiencing big feelings of excitement, nervousness and frustration.

Sammy and Benito find a way to communicate; Sammy makes plans for his mom's visit.

Donkey and Cousin Hodie figure out how to have fun in the rain; Donkey is patient while Cousin learns a new game at Grampy's Game Day.

Rosie finally gets the courage to go into the Fun House at the carnival, but then finds out she doesn't have enough tickets; Rosie goes to the pet store to get something for Crystal's new bunny.

Daniel visits the post office and learns how letters are sorted and mailed, then sends a letter to Dad; Daniel and Dad Tiger surprise Mom with banana bread.

Alma finds a way for everyone to get books while the library is under renovation; Alma finds a doll in the park.

Molly must find her mom's plane keys so she can get home in time for Mother's Day; Trini spots a talking white bird.

David Suzuki explains to Xavier that by taking care of the earth, we take care of ourselves; Esther Martinez explains to Xavier and Yadina about how stories can connect people to their family histories.

How discoveries over the past 50 years have revolutionized people's understanding of the universe.

From Kenya to Mexico, people and wildlife find a harmonious balance in Earth's most vulnerable landscapes.

Eric Hanson treks the canyons and waters of Lake Powell, Utah, on foot and via packraft.

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.

Live news program produced out of BBC's Washington, D.C. bureau; host Sumi Somaskanda.

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

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

Margaret Hoover leads interviews and debates.

Actor Michael Douglas and writer/director Lena Dunham explore their family roots.

The story of the American suffragist movement and the friendships, heartbreak and action that brought women together and tore them apart.

A heated debate to pass the 19th Amendment giving women the right to vote escalates in Nashville, Tenn., in 1920.

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

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.

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.

Marine botanist Sylvia Earle and Fred Rogers snorkel off the Florida Keys.

Muffy challenges Francine to be nice for one week; Arthur joins a gang.

Martin encounters a lost colony of black-footed ferrets.

Benny's toy penguin is swept away by melting snow, transforming a day of sledding into an urgent rescue mission.

Lyla figures out how to do a magic trick with clues from Miss Emmaline; Luke finds a puppy.

Arugula and Carl go on an adventure as archaeologists; Carl spots a UFO on Mother's Day.

Things don't go as planned when Daniel and Dad Tiger spend the day together; Daniel and Mom's day together includes turning her old wagon into a trolley.

Phoebe, Jay and Lupe practice their fire safety plan when the fire inspector visits; Phoebe and Jay buy juice from Mr. Aguilar.

Rudy feels angry when Abby asks him to share his toys, so his friends make a movie to show that sharing can be fun.

All aboard the Moo Moo Choo Choo; visiting great uncle Duper in the Windborhood; world's biggest whirligig blows away; helping great uncle Duper imagine how to build a new one.

Traditional beef stew; chef Chris Ikeda puts a modern spin on the classic loco moco.

A flavorful tandoori salmon; favorite kitchen gadgets under $15; a tasting of yogurt; broiled smashed zucchini with garlicky yogurt.

Grilled hilltribe chicken with kua txob; the difference between fondue and fonduta; refreshing tomatoes with fontina sauce and cornichon dressing.

An age-old practice of knitting lace by Benedictine nuns; cooking a sacred dish by locals on Pakleni Islands.

The ancient Day of the Dead tradition includes parades, home altars and decorated graves.

Seaweed gin; exploring Carrigaholt Castle and Lighthouse; a dolphin-watching adventure off Ireland's Atlantic Coast.

Madrid, Spain; museums; Picasso masterpiece; flamenco dancers.

A guided tour of Zurich; Museum Fur Gestaltung; Felsenegg cable car ride; Mount Uetliberg; Hiltl, the oldest vegetarian restaurant in the world; Yonex Badminton Halle.

Identifying an Early Frame pea from Little Mountain, S.C., and returning it to Monticello.

Calabrian panzanella; Burmese tomato salad with shallots and peanuts; tomato conserva; upside-down tomato tart with Parmesan pastry.

Dandelion and chickpea salad; one-pan chicken and eggplant Parmigiana.

Installing vinyl siding on the main house and ADU; revealing the ADU's framed layout; reviewing basement HVAC; installing a three-panel slider to connect indoor and outdoor living.

Lawn mowing basics; how to vet and hire a trustworthy contractor to avoid costly mistakes; installing a concrete paver walkway.

Science, health, technology and environment experts and professionals address issues such as artificial intelligence, medicine and climate science.

Two men discuss farming, California water policies and the future of agriculture.

Rockers Pat Benatar and Neil Giraldo present a career-spanning hour of classic rock hits including "Heartbreaker," "We Belong" and "Love Is a Battlefield.".

A string of grisly murders ensue after the entire village of Goodman's Land is bought by a Texas oilman.

Father Brown investigates when rehearsals for "A Most Perfect Murder" are derailed by a dramatic death.

Father Brown's old friend's daughter suffers otherworldly visions.

Blues rock musician Gary Clark Jr. performs highlights from "JPEG Raw"; Black Pumas present selections from "Chronicles of a Diamond.".

Daddy Kool Records; Banana Records; Technique Records, one of the best indie stores in Miami.

Exploring humanity's timeless questions -- who we are, why we are here and where we are headed -- with leading thinkers Richard Rohr, A.R. Bernard, Rachel Timoner, Kwame Anthony Appiah and Kelly Brown Douglas; host Ray Suarez.

Dr. Daniel Amen maps the brain networks that drive physical and emotional pain and reveals his practical, brain-based strategies that help you feel better, think clearer and live more fully.

The powerful stories of Fannie Lou Hamer, Elaine Brown, Ella Baker, Dolores Huerta and Yuri Kochiyama -- women whose courage, intellect and activism helped shape the civil and human rights movements in America.

Touring the "Mister Rogers' Neighborhood" television studio and meeting the staff.

Arthur's not sure what to make of the new baby; D.W. considers running away to Button Island.

Martin and Chris find out that Zach Varmitech plans to capture a black jaguar.

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

Lyla and Luke clean Stu without a bath; Lyla and Ale find a way to protect the callaloo plants from stink bugs.

Carl and his friends clean up the Fuzzytown Park; Carl accidentally breaks the birthday present Sheldon planned to give his mom.

Daniel visits the post office and learns how letters are sorted and mailed, then sends a letter to Dad; Daniel and Dad Tiger surprise Mom with banana bread.

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

Unified Sports gives students with disabilities a chance to play sports; student-run radio; a transitional program for disabled students who have graduated high school; why education experts are rethinking the traditional high school model.

Joseph Rosendo travels to picturesque and ethnically rich destinations around the world.

How contemporary dishes incorporate unique ingredients like mesquite flour and prickly pear syrup; efforts to preserve ancient Hopi corn varieties and other traditional foods.

The city of Izamal features buildings painted in the same golden hue; venison tacos and poc chuk; a jeweler makes jewelry from his backyard plants.

The first Irish diaspora to Europe in the 1600s; the Irish look westward for new hope -- the British Colonies of North America.

From beavers reshaping wetlands to crayfish living deep underground, aquatic systems reveal the prairies' hidden vitality.

The story behind David Attenborough's wildlife documentary series "Life on Earth," which changed his life forever.

Will and Leonard witness a deadly hit-and-run in Grantchester; Geordie traces the car to a pair of decidedly dysfunctional brothers, whose house lies far off the beaten path; Will and Geordie both struggle as unwelcome guests look set to stay.

Will and journalist Ellie go on their first date with a trip to the cinema; a scream from the projection booth cuts the romance short as they discover a brutal murder has taken place within the cinema, and Geordie arrives to investigate.

A new cohort of junior doctors join the midwives, including Timothy, who observes the contrast between clinical medicine and compassionate care at Nonnatus House; Violet announces her plan to shadow the midwives.

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

An age-old practice of knitting lace by Benedictine nuns; cooking a sacred dish by locals on Pakleni Islands.

Sister Veronica weighs her future with the Order; Dr. Turner makes a final stand against the council's news before the maternity home closes; the Mullucks campaign for the rights of all thalidomide victims.

Becca and Rosaline reel from shock and seek solace in different directions as revelations about the circumstances surrounding Mary's death come to light.

Edmond reveals to Villefort that Heloise stole the vial of poison from him, the same poison used to murder the Marquise; Villefort confronts Heloise, threatening to expose her.

Cora Felton, AKA "The Puzzle Lady," has a remarkable talent for solving murders.

A terrifying serial killer has the team racing the clock after the Countess is kidnapped.

A new cohort of junior doctors join the midwives, including Timothy, who observes the contrast between clinical medicine and compassionate care at Nonnatus House; Violet announces her plan to shadow the midwives.

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.

Martin and Chris try to touch a hummingbird; the brothers utilize hummingbird powers to prevent Gourmand from cooking chocolate-covered hummingbird egg snacks.

Prunella receives a Braille copy of a book; Arthur and D.W. watch immature television shows.

As a hurricane approaches, the Hunter kids learn about preparation and safety, moving furniture inside and checking their emergency supplies.

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.

As a hurricane approaches, the Hunter kids learn about preparation and safety, moving furniture inside and checking their emergency supplies.

Daniel and O play post office; Jodi uses things in nature to make a homemade boat.

Phoebe plans a birthday surprise for Grandma; Phoebe and Jay must tend to the bell pepper in the garden.

Rudy is afraid of getting a shot at the doctor's office, so Nina and Abby play pretend to show what the visit will be like so he can feel less scared.

The Treeborhood celebrates a parranda; the Wombats try to stay awake on New Year's Eve.

Panda is sad when an exciting holiday is over; Rockstar Penguin asks Donkey and Panda to make up a new dance.

Rosie puts on a concert when Tia is unable to get tickets to see her favorite singer; Rosie loses her first tooth, and prepares to welcome both the Tooth Fairy and the Tooth Mouse.

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.

Alma and Eddie open a mofongo food truck but run out of time to make the mofongo; Alma challenges André to scooter races to prove she is faster.

Molly must find her mom's plane keys so she can get home in time for Mother's Day; Trini spots a talking white bird.

Edmund Hillary explains to Xavier that even the most courageous adventurers ask for help when they need it; Yadina prepares for a special birthday performance with the help of Celia Cruz.

Lucy Worsley dispels the myths behind some of the key moments in British royal history, and she uncovers how historical stories have been manipulated and mythologized for generations.

After a pet detective turns up dead inside the kennel of a dog he was searching for, Barnaby and Winter are drawn into the world of dognapping, cat seduction, and animal investigation.

A guided tour of Zurich; Museum Fur Gestaltung; Felsenegg cable car ride; Mount Uetliberg; Hiltl, the oldest vegetarian restaurant in the world; Yonex Badminton Halle.

A regular panel of guests from across the political spectrum discuss the biggest international stories of the day.

Live news program produced out of BBC's Washington, D.C. bureau; host Sumi Somaskanda.

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

How contemporary dishes incorporate unique ingredients like mesquite flour and prickly pear syrup; efforts to preserve ancient Hopi corn varieties and other traditional foods.

Elinor, Olive and Ari disagree about the best way to build a couch cushion castle; when Ari misplaces the group's favorite ball, they discover that he needs a system for keeping track of his things.

A Cartier Art Deco Tutti Frutti clutch circa 1925; a Carl Kauba cowboy bronze circa 1900; a Sumerian cuneiform tablet.

Green Bay Packers salesman's sample championship rings; Barbie dolls and wardrobe circa 1960; a 1977 Keith Haring Bean Salad lithograph.

The town of Natchez, Miss., confronts the tension between preservation and truth as it wrestles with race, memory and identity.

Green Bay Packers salesman's sample championship rings; Barbie dolls and wardrobe circa 1960; a 1977 Keith Haring Bean Salad lithograph.

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

Twenty-four hours a day, the latest national and international stories as they break.

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.

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.

Martin and Chris try to touch a hummingbird; the brothers utilize hummingbird powers to prevent Gourmand from cooking chocolate-covered hummingbird egg snacks.

D.W. doesn't want another pet after her bird, Spanky, dies; Buster's too busy to spend any time with Arthur.

Benny's toy penguin is swept away by melting snow, transforming a day of sledding into an urgent rescue mission.

Lyla struggles to sleep and tries to figure out what is wrong with her sleep routine; Lyla tries to do her own hairstyle.

Carl blames Nico when his special crayon breaks and Nico blames Carl when his drawing rips; Lotta tries to learn to play the alto saxophone.

The Tiger Family goes to the restaurant for taco night; Music Man Stan comes to school for a musical story with the class.

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

Reporters Elmo and Abby offer strategies to Nursery Rhyme characters experiencing big feelings of excitement, nervousness and frustration.

The Wombats track down a scary-weird sound that has frightened Carly, CeCe and Clyde; the Wombats become Hopping Helpers for a day.

Donkey and Panda must complete hard challenges to earn badges for Try Scouts; Donkey and Duck Duck teach Bob Dog a new game.

Things get out of control when Rosie starts a pet-sitting business; Rosie plays with a rock from Javi's rock collection.

Elinor and her friends play Hide-and-Go-Seek but are unable to stay hidden from the Goat twins; an owl inspires Elinor's costume for Costume Day.

Alma cheers up Lucas after he misses out on a trip to the Statue of Liberty; Alma and Andre help Dona Carmen with a recipe.

Molly faces big obstacles while training for a cross-country ski race; Molly and her family lose their lunch when a seal sneaks onto their boat and steals their food during a fishing trip.

Bruce Lee helps Xavier and Brad realize that no matter how angry they get, they are in charge of what their body does; Sonia Manzano shows Yadina that telling stories can help manage big feelings.

A Cartier Art Deco Tutti Frutti clutch circa 1925; a Carl Kauba cowboy bronze circa 1900; a Sumerian cuneiform tablet.

Actors Felicity Montagu and Clare Holman navigate their way around the Midlands and uncover an exceptional lampshade and snooker cue stand; on the way to the auction in Newport, Shropshire, they also discover some fascinating Sikh history.

Becca and Rosaline reel from shock and seek solace in different directions as revelations about the circumstances surrounding Mary's death come to light.

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.

Live news program produced out of BBC's Washington, D.C. bureau; host Sumi Somaskanda.

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

Host David Yetman explores the landscapes, people and history of North America and South America. Stops along the way include the glacier-carved barrens of northern Canada, Mayan temples in Guatemala, ancient fortresses in Mexico and the Great Lakes of North America. Natives, immigrants, island mainlanders, pastoralists and city dwellers offer insight into their lives, work and homes. Episodes als

A photo safari of Portugal's Azores Islands in the Atlantic Ocean.

Jamie Chung, Cyndi Lauper and Danny Trejo retrace the journeys of their immigrant ancestors.

Research into the ancestry of singer Lea Salonga and actress Amanda Seyfried reveals relatives who survived heart-wrenching ordeals.