WMHT-DT

Author and historian Rick Atkinson discusses the American Revolution.

The early married life of Princess Margaret and her husband Anthony Armstrong-Jones in the 1960s, as major social changes take place in Britain.

As he grows into his role as heir, Matthew brings out the rivalry between sisters Mary and Edith; servants Thomas and O'Brien scheme against Bates.

A group of Ayn Rand-inscribed books; Edward Borein watercolor circa 1930; a 1931 Carnegie hero medal; a visit to Crab Tree Farm.

Exploring the ancestry of actress Sharon Stone and model Chrissy Teigen includes traveling across Europe and Thailand.

Muffy helps Francine deal with the death of her Bubbe; Arthur and Buster try to make the family vacation more exciting.

The Mobile Unit tries to figure out who broke into Odd Squad's Top-Secret Security Facility to get the mega-computer; The Shadow tries to convince villains worldwide to join her Villain Network.

Martin and Chris try to rescue a foal who is separated from his mother by a rogue wave.

The Hunters find a stowaway in their picnic basket, a little furry dog.

Liana and Lyla put together a puzzle with more than 1,000 pieces; Lyla and Luke construct a train using household materials.

Sheldon can't wait for Carl to play his favorite beach game; Lotta and her friends search for Lotta's lost blanket.

Daniel and Prince Wednesday make a lemonade stand together but disagree about how to hand out the lemonade; Daniel and Miss Elaina get mad when their sandcastle is knocked down by a wave.

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

On a hot day, Abby creates a snowman to keep her and Elmo cool; when they return from finding decorations, their snowman has vanished.

Malik learns the key to a successful "Brother Day"; Zeke and Louisa wait tables at the Eat 'N Greet after Duffy sprains her ankle.

A noisy penguin interrupts band practice; the pals work together to win Gator's latest game show.

Rosie and Javi transport a watermelon to the park for the family picnic; Rosie builds a dino cave for Iggy.

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.

Alma and Eddie try to write a song in hopes of winning the Song of Summer Contest.

Molly thinks she has seen a rare Australian megabat; Travis helps Molly, Tooey and Trini earn their wilderness cleanup badge.

Ibn Battuta shows Brad that a change of scenery might help him finish his comic book story; Beulah Louise Henry inspires Yadina to keep working on her invention.

Liana and Lyla put together a puzzle with more than 1,000 pieces; Lyla and Luke construct a train using household materials.

On a hot day, Abby creates a snowman to keep her and Elmo cool; when they return from finding decorations, their snowman has vanished.

The Mobile Unit tries to figure out who broke into Odd Squad's Top-Secret Security Facility to get the mega-computer; The Shadow tries to convince villains worldwide to join her Villain Network.

Martin and Chris try to rescue a foal who is separated from his mother by a rogue wave.

A man's suspicious fall from the roof of his house leads Barnaby and Scott to investigate; to gain his life insurance they must determine whether the cause of death is suicide or murder.

Father Brown is called upon to untangle the mystery when a seamstress is stabbed to death.

A detailed look into news stories from around the world from the BBC news desk in Washington, D.C.

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

Duncan Campbell discovers a very rare silver tobacco box from the 1600s; Serhat Ahmet examines a porcelain egg with a royal connection.

Items reflect 250 years of American art, artifacts, crafts and collectibles; finds include a flag quilt circa 1880, a Tiffany Studios turtleback glass shade circa 1915 and an 1884 Edison light bulb.

A WWII transport ship equipped with non-functioning lifeboats and inadequate lifebelts was sunk by one of the first radio-guided missiles ever used in war. 1,015 U.S. soldiers were killed in the attack that remains the greatest loss of life at sea in the history of any U.S. war. Uncovered classified documents reveal that neglect and oversight contributed to the large number of casualties.

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.

Duncan Campbell discovers a very rare silver tobacco box from the 1600s; Serhat Ahmet examines a porcelain egg with a royal connection.

A 1941 Rolls-Royce Wraith center caps and certificate; 1934 All-American basketball team autographs; a Maynard Dixon oil painting circa 1913.

A look at how the telescope was invented, from Galileo to Edwin Hubble, and how the invention reaches the universe 13 billion light-years out.

A look at the life of Princess Margaret, whose life and loves reflected the social and sexual revolution that transformed Britain during the 20th century.

The early married life of Princess Margaret and her husband Anthony Armstrong-Jones in the 1960s, as major social changes take place in Britain.

Journalists Grace Dent and Amol Rajan are accompanied by experts Catherine Southon and James Braxton; they purchase Winston Churchill's cigar and wind-up tinplate toy rocket.

Arthur prepares for a marble tournament; superstitions.

Captain O tells the story of when she faced Dottie Doubloon, who covered islands in polka dots; Orli must return a clam to its rightful home.

Martin and Chris explore why animals mimic the looks of others.

Benny becomes enamored with the mail carrier, and wonders how she delivers the mail in different weather conditions.

The Loops celebrate the day they met Stu; Liana finds crumbs on Louisa's pillow and accuses her of taking the last cookie.

Carl turns to his friends to help him organize his plushie collection; Carl loses his bouncy ball collection.

Daniel wants to go outside and play in the snow, but Dad Tiger says he must wait in bed until it is time to get up; Daniel wants to swing as high as Jodi at the playground.

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

Tamir is disappointed when Grandma Nell shows off the drawing he made for Chris before it is finished.

Super hunts for a lost sticker while the Wombats collaborate on a new ending for an old "Sticker Monster" story; the Wombats teach Zeke how to count to 10.

Turtle-Lou opens a Speedy Delivery service; the pals have a sleepover at Bob Dog's house, but Donkey is unable to fall asleep.

Rosie decides to be a message delivery kid and deliver messages to her neighbors, but her messages get all mixed up; Javi temporarily loses his voice, so Rosie must help him recover before they perform their El Coco play.

Elinor, Olive and Ari get ready to go out and play in the snow; Elinor wants to learn how Velcro works.

Alma and Andre take a new friend, Beto, to a New York beach; Junior's sandcastle gets washed away by the tide.

Molly's camera breaks while she and Grandpa Nat are observing an active volcano; Molly and Tooey plan a bird-watching trip to celebrate winter solstice and Trini's birthday.

Michelangelo shows Brad that doing something well takes time; Dorothy Levitt explains that it's important to start with the basics when learning a new skill.

The Loops celebrate the day they met Stu; Liana finds crumbs on Louisa's pillow and accuses her of taking the last cookie.

Tamir is disappointed when Grandma Nell shows off the drawing he made for Chris before it is finished.

Captain O tells the story of when she faced Dottie Doubloon, who covered islands in polka dots; Orli must return a clam to its rightful home.

Martin and Chris explore why animals mimic the looks of others.

A Marilyn Monroe-signed autograph; 1986-1987 Michael Jordan basketball cards and sticker; a Tiffany & Co. diamond and sapphire bracelet circa 1960.

Great Slaughter is buzzing with excitement for this year's talent show; the excitement turns to panic once a magician is murdered due to a trick.

A detailed look into news stories from around the world from the BBC news desk in Washington, D.C.

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

Jon Baddeley checks out a collection of film props and memorabilia from the movie "Blade Runner"; Will Farmer inspects a perspex mermaid sculpture by Arthur Fleischmann.

Actors LeVar Burton and Wes Studi, two men who grew up without their fathers, explore their family histories.

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.

Creators use art to advocate for good; guests include actor Riz Ahmed, choreographer Alexei Ratmansky and portraiture photographer Jess T. Dugan.

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.

The city of Padua, Italy, is known for its university, Giotto frescoes and basilica; Verona's Roman ruins; Ravenna's mosaics.

A real estate advertisement erected in 1923 becomes an international symbol of fame, fortune and the American dream.

How the "Don't Tread on Me" flag has been co-opted by a wide variety of Americans over its long history.

With invasive species reshaping the world's ecosystems, Shane wrestles a python, hunts Hawaiian pigs and gets sucker-punched by a carp as he considers how the human species is able to decide what belongs.

Exploring the global impact of humans, from Yellowstone to Mozambique.

How dogs have been reshaped by evolution to become the perfect partner to humans.

Muffy sets out to find her long-lost imaginary friend; Francine is not invited to Catherine's 16th birthday party.

A new villain challenges the Mobile Unit; Odd Squad's tube system mysteriously shuts down.

The Kratt brothers want to fly with the peregrine falcon.

A foggy Halloween almost derails Corky and Lily's trick-or-treating.

Lyla and her siblings come up with a sandwich special for Loops Lunch; Lyla helps her mom build a vertical garden behind Loops Lunch.

Carl surprises Sheldon with a lemonade stand, but is confused when Sheldon runs off; Carl's caterpillars turn into butterflies.

Daniel and his family explore nature, watching a red bird build a nest; Daniel, O the Owl and Uncle X take a nature walk through the forest.

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.

Cinderella needs to tell time for the ball, but her clock is broken, so Nina, Abby and Rudy wonder what tool they can use to fix it.

The Wombats go on a quest to figure out all the elements that go into creating the perfect personal time routine; Zadie wants to make a really loud noise.

The pals each feel differently about a loud thunderstorm; Mama Panda teaches Donkey and Panda new hoop tricks.

Rosie volunteers to put Iggy to bed, but she has to follow his special routine; Rosie assists Crystal in her magic show.

Elinor is the new Clean Captain at school and takes things too far; Ari has a loose tooth.

Alma tells on Emi when she's doing something dangerous; Alma's friends won't try Aaron and Lucas' snacks.

Trini is determined to learn an ice skating move; Tooey and his brothers use tracking skills to find their dad in the forest.

Kofi Annan shows Yadina and Brad that finding a compromise can help everyone; William and Caroline Herschel show Xavier that by including Yadina in his magic show, it can make it even more fun.

Lyla and her siblings come up with a sandwich special for Loops Lunch; Lyla helps her mom build a vertical garden behind Loops Lunch.

Cinderella needs to tell time for the ball, but her clock is broken, so Nina, Abby and Rudy wonder what tool they can use to fix it.

A new villain challenges the Mobile Unit; Odd Squad's tube system mysteriously shuts down.

The Kratt brothers want to fly with the peregrine falcon.

Actors LeVar Burton and Wes Studi, two men who grew up without their fathers, explore their family histories.

Industrial expansion and decline along the Erie Canal and the impact on workers in the steel, grain, textiles and shipping industries.

A detailed look into news stories from around the world from the BBC news desk in Washington, D.C.

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

With host Matthew Rogowicz.

From Africa to Sri Lanka to Iceland, animal babies learn the most basic tools for survival during the first three months of life.

Baby animals face new challenges as they learn how to get around on their own, from searching for food to surviving in harsh environments.

Baby animals approach the end of their first year of life, branching away from their mothers and exploring the world on their own.

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

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

With host Matthew Rogowicz.