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Scientists try to figure out how to predict weather events called "rain bombs" that sink ships and down planes.

Isabella Tree and her husband, Charlie Burrell, strive to breathe new life into the ailing Knepp estate. They reintroduce native ponies, deer, pigs and other wildlife, allowing nature to thrive.

How to cope when you and your partner have opposite sex drives, new ED therapies for men who don't like medications, how to stay in the game while on antidepressants.

A Cuban family adjusts to life in the United States.

Germany's port city of Hamburg, post-World War II; historic sites of Martin Luther and the Reformation, including Erfurt, Wittenberg and Wartburg Castle; Wurzburg in Franconia.

Muffy wants a Dream Bouncy Castle for her party; Francine and Muffy set up their older siblings.

Agents from the Big O's office threaten to shut down Odd Squad; Oona meets Dr. O's replacement.

Martin and Chris stumble upon a rare and endangered seedling of a butternut tree; while looking for its parent tree, they only discover dead ones.

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

Lyla and Everett play basketball against their moms; Lyla and Luke restore their old toy car to make it special for Stu.

Carl can't wait for the ice cream festival; Carl is upset that he has to wear a cast on his broken wrist.

Daniel and his friends play T-ball and find that Henrietta is a dance teacher and a T-ball coach.

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

TJ is excited to meet his favorite comic book artist Bobby Manalo, and to make him feel welcomed on Sesame Street, TJ makes him a comic book gift with the help of Tamir; while working on it, Tamir also learns to say a few words in Tagalog.

Zadie creates a Treeborhood photo album to trace the growth of their beloved tree from little to very big; Mr. E judges a sculpture contest.

Donkey feels jealous when Grampy gives Panda a piano lesson; Duck Duck is disappointed when she misses her favorite band.

Rosie, Javi and Papa use different kinds of transportation to bring Tia her lucky spoon before her train leaves; Crystal's disc gets stuck in a tree.

Martin and Chris observe wild cats and dogs interacting with each other on the African savanna.

Molly spends the night at Tooey's house when a blizzard strikes Qyah; Molly loses her fish charm bracelet in an ice hole.

Watching Julia Child follow a step-by-step recipe encourages Xavier to do the same to build a model airplane; Neil Armstrong inspires Yadina to try new things.

Neil Armstrong-signed Apollo 11 moon landing photos; a Tongan war club made around 1800; 1993 "Magic: The Gathering" beta cards.

Ross tests out smart lighting; Tom helps a homeowner build a custom screen door; Richard gives advice on maintaining a washing machine; Mauro shares techniques to paint old 1960s wood trim.

The latest news from health journals and research institutions.

Signs of eye trouble and simple prevention strategies.

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.

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

Parenting autistic kids; living a healthy life; music therapy.

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

Margaret Hoover leads interviews and debates.

Exploring the layered sounds of Istanbul where empires met from European classical music to modern jazz.

Jazz and blues musicians from around the globe gather to celebrate the power of music; host Jeremy Irons.

Filmmaker Jim Virga examines one of the nation's best public high school jazz bands.

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

A well-known photographer is found dead with a stake stuck in his heart.

The body of a biologist is discovered in a tropical greenhouse.

Astrid confronts the criminal her father chased before he was murdered.

Lucy Worsley investigates how the trial of one "witch" sparked Britain's witch-hunt craze; the investigation begins in North Berwick, a seaside town not far from Edinburgh, where the witch hunting craze began.

Sailing under towering fjord cliffs; hiking glaciers; Hanseatic heritage.

Aerial view of Cappadocia; underground city; circumcision party; exploring troglodyte ghost towns; shopping for sheep; the modern capital of Ankara.

Nico is tired of being mistaken for her twin sister; Carl is upset when Nico breaks the Lint Dinosaur Monday rules and makes a Lint Monster instead.

Mom Tiger shows Daniel the strawberry patch; crayons are made at the factory.

Five-year-old Mexican American Rosie Fuentes learns how the world around her works in her suburban Texas community.

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.

Malik and Zadie can't agree on how tidy to keep their bedroom; Zeke's friends build houses for the fairies who have moved in.

Phoebe and Jay learn how to sort items; Phoebe and Jay learn how to make food labels, so everyone can participate in the potluck.

Elinor finds a peculiar-looking owl while visiting her grandparents in the desert; Olive and her friends investigate why a tree has fallen over in the forest.

Hacker positions giant patches of trash in Cyberspace in a plan to finally shut down Motherboard once and for all.

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.

Exploring what can be done to protect both the right to speak and the right to hear; how companies can ensure that open communication remains a cornerstone of democracy.

Two photographers journey to iconic locations and talk to experts about their ecological, cultural and historical significance.

Roman hot springs; cruising canals; Gothic church; Viking history.

Behind the scenes at Tanglewood with Boston Pops conductor Keith Lockhart; Connecticut's Lime Rock Park's Historic Festival where antique and vintage cars embark on a 17-mile tour of Litchfield Hills.

A Walpole ranch is reimagined with an ADU for aging parents, a primary suite bump-out, smarter baths and better flow from garage to new mudroom and kitchen.

Basic tools and supplies needed to paint a room; compost versus disposal; how to run underground power from a house to a shed.

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

Crab and shrimp stew; reviewing gyuto knives; fresh salmon burgers with Sriracha mayonnaise.

The barbecue traditions of Lockhart, Texas; cooking barbecued chuck roast; the origins of ranch dressing; preparing tomatillo and Bibb lettuce salad with tomatillo ranch.

Members of the Cree Nation reintroduce the American buffalo; a new breed of cattle ranchers on Montana's high plains; conservationists in the Centennial Valley work to restore the Arctic grayling.

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.

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

Chef Michelle Bernstein hears diner's reviews of restaurants.

Frank Licari leads a tour of the places that capture the culture, fun and beauty of the Palm Beaches. Whether you're here for a season or settling in for the long haul, Frank shares the spots that the locals love.

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.

The store attracts the wrong kind of customers when it advertises on CB radio.

Onslow's birthday celebration may come only once a year, but even that's too soon.

Lionel and Jean play matchmaker at a picnic for Alistair and Judith, hoping that the two will hit it off.

Waitstill and Martha Sharp, a Unitarian minister and his wife from Wellesley, Mass., leave their children behind in the care of their parish and commit to multiple life-threatening missions in Europe. Over two years, they help to save hundreds of imperilled political dissidents and Jewish refugees fleeing the Nazi occupation across Europe.

Historian Simon Schama examines the Holocaust as a worldwide crime and its impact today, 80 years after the liberation of Auschwitz.

The classroom inside prison where educators equip scholars with the resources to define their own paths; the roadtrippers reflect on their own journeys and learn what it takes to set themselves free.

Singer-songwriter Jason Isbell and his band 400 Unit present songs from "Weathervanes.".

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.

Fine living in Burgundy, France; canal barge; medieval hospice; modern monastery.

U.S. pressure has pushed Cuba's economy into freefall, with fuel shortages and mass emigration. Is a military operation imminent? Historian Michael Bustamante on the latest in the U.S.-Cuba crisis.

Attorney and estate planning expert Ethel Mitchell explains how wills, trusts and sound legal planning protect families and generational wealth.

Exploring possible solutions for the small town of Craigsville, Va., as it struggles with the closing of the Augusta Correctional Center.

The Infiniti QX60; the Honda Pilot; a pop-up headlight sports car comparison test from the mid-80s.

Many Florida dolphins show signs of immune-system dysfunction and disease.

How pulleys work; a rainy story in the Neighborhood of Make-Believe.

After being warped into Cyberspace from a library computer, Matt leads friends Jackie and Inez as Cybersquad. With live hosts Bianca and Harry, the team must protect Motherboard from the evil Hacker who wants to rule Cyberspace. Using gadgets and following clues, the team solves math mysteries and any other problem that comes their way.

Daniel and his friends play T-ball and find that Henrietta is a dance teacher and a T-ball coach.

Nature Cat and pals realize they've come to the end of their Nature Curiosity List; Sir Galahad gives himself the title of King, moves into a castle and steals pieces of nature to make it look more beautiful.

Zadie creates a Treeborhood photo album to trace the growth of their beloved tree from little to very big; Mr. E judges a sculpture contest.

Donkey feels jealous when Grampy gives Panda a piano lesson; Duck Duck is disappointed when she misses her favorite band.

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

The adventures of an observant and curious bunny rabbit named Elinor and her friends Ari the bat and Olive the elephant.

Miss Penny and Shiny the Star embark on exciting adventures.

Tiger expert Valmik Thapar uncovers 50 years of archival footage chronicling the tiger clan of northwestern India's Ranthambore National Park.

A look at the Tarpon Springs Sponge Docks and the Greek influence on the area.

Refurbishing a paver walkway with Florida-friendly plants; a young couple is determined to attract more birds to their backyard by planting specific plants that bring in wildlife.

The story of Perpetua, a young Christian martyr; places where Christians faced violence because of their beliefs.

The conversion of Constantine the Great transforms the fortunes of the Christian faith.

Rick Steves cruises the Seine, visits Sainte-Chapelle and takes a vibrant tour through Paris; the Louvre Museum; Palaces of Versailles; climbing the Eiffel Tower.

Celebrating Europe's art and creative geniuses, from Leonardo Da Vinci to Vincent van Gogh; Florence's bold "rebirth" after Europe's medieval struggles; impressionist works of the late 1800s.

Rick Steves takes a European alpine adventure from Italy to Austria and Switzerland to France; locations include the Dolomites, Zugspitze, Matterhorn, Aiguille du Midi and the Tour du Mont Blanc hiking path.

A tour of the European islands of Malta, Capri, Orkney and Skye includes remote beaches, Crusader castles and prehistoric wonders.

Inspector Sullivan asks for Father Brown's help when Mrs. Devine's son, Eddie, is framed for Howton's murder.

A well-known photographer is found dead with a stake stuck in his heart.

An expectant father receives a life-threatening diagnosis; Trixie assists a female wrestler after a headlock goes wrong; Dr. Turner learns shocking news that implicates the future of the maternity house.

Soames commissions a country house despite Irene's distress; as Louisa faces a fresh start, Jo decides his future; Ann reveals a dark secret.

In Paris high society, Edmond meddles in the lives of those he wishes to destroy; Edmond struggles to conceal his identity from Mercedes.

Suspicions grow after a wife is murdered a year after her husband. The Countess and Hannes are offended by Lukas and Nina.

The story of Perpetua, a young Christian martyr; places where Christians faced violence because of their beliefs.

The conversion of Constantine the Great transforms the fortunes of the Christian faith.

Rick Steves cruises the Seine, visits Sainte-Chapelle and takes a vibrant tour through Paris; the Louvre Museum; Palaces of Versailles; climbing the Eiffel Tower.

A close look at the life of George III, including the effect of his mental illness on Britain and how the assassination attempt on his life changed psychiatry.

How the Black Death changed Britain and how the huge death toll affected religious beliefs, class structure, work and women.

A Cuban family adjusts to life in the United States.

The capital city of Dresden, Germany's palaces and art of the Wettin dynasty; Leipzig's Bach heritage, a monument to the day Europe beat Napoleon and museums.

George is inspired to make a movie after meeting his hero, Hollywood director Tufton Sinclair; Binky takes the fall when George breaks the class's woodworking project.

Olympia and Otis baby-sit Baby Genius; Oona talks about when she switched bodies with a fly.

A power suit malfunction turns Martin into an oak tree.

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

Lyla overcomes her fear of rock-climbing; a riddle game about everyday objects made by Black inventors.

Carl and Nico argue over who gets Arugula as their magician's assistant; Sheldon tries to help Carl become a good listener.

Jodi is nervous about her first day at a new school, but Daniel Tiger helps her feel comfortable; Daniel is nervous playing at Jodi's house, until he finds blueberries, which make him feel better.

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.

Elmo tries to win a race without eating his sandwich, but learns that eating healthy food will give him energy; Cookie Monster tries to eat the sandwich for himself.

The search for Mr. Splendito tickets is on; the Wombats power-clean a bunch of bikes.

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 and Javi make flowerpots using repurposed items for the Robot Picnic; Rosie and Javi open a car wash to clean Iggy's ride-on car.

The kids learn the best way to slide down a hill; Ari and his friends learn the importance of oral health after Ari forgets to brush his teeth.

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

Molly and Stormee try to retrieve Grandpa Nat's microphone; Molly and Stormee encounter a rattlesnake.

Ravi Shankar shows Yadina that it can feel good to share her culture; Babe Didrikson Zaharias shows Yadina that practice can help her do difficult things, like making the basketball team.

Tiger expert Valmik Thapar uncovers 50 years of archival footage chronicling the tiger clan of northwestern India's Ranthambore National Park.

Kevin works with Jenn Largesse to demonstrate a technique on a trim router; Heath grounds an outlet; Mauro explains paint rollers and demonstrates rolling techniques; Mark replaces fireplace doors.

The latest news from health journals and research institutions.

Frequently asked questions about intimacy and relationships.

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.

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

Chef Michelle Bernstein hears diner's reviews of restaurants.

An Andrew Clemens sand bottle circa 1885; a 1933 Goudey baseball card set 239/240; a Joan Miró pencil on paper circa 1965.

British General Howe defeats General Washington, forcing the Americans to abandon New York; Washington's army regroups in New Jersey before attacking an outpost at Trenton.

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.

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