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

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.

Using a mobile CNC routing machine; building a dog dish stand using power tools; different methods for wiring a portable generator to a house.

The latest news from health journals and research institutions.

Tools to help rebuild confidence, set healthy boundaries, and rediscover a sense of self after emotional manipulation or abuse.

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.

As algal blooms increase in length and severity in Florida, scientists study their causes, impact, and how to stop them.

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

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.

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

Actors Ted Danson, Mary Steenburgen and William H. Macy trace their nonconformist ancestors back to the Puritan establishment.

Congress puts George Washington in command of a new Continental Army; Congress declares American independence in July 1776.

A look at America's founding and how the ideas and values articulated 250 years ago remain relevant to conversations about governance today.

A Cuban family adjusts to life in the United States.

A reunited Berlin entertains more visitors than ever before.

Arthur tries to help Prunella with her pack rat habits; Binky finds out his real name.

Ozzi and Orli go on a mission to catch the villain who is ruining the Triangle Sisters' café; Opie must collect enough money to pay for Captain O's 10-layer birthday cake.

On their annual laundry day, the Kratt brothers disagree on whether blue oceans or green forests are better; Aviva demonstrates how oceans and forests work together.

Dot and Al announce the Hunters are spending Christmas in Nigeria, and Corky wonders if she can have a fun Christmas without snow.

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

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.

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

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.

Donkey and Panda make up a game while waiting for Gameshow Gator's new game; Donkey and Panda disagree on which toys are fun.

Rosie, Crystal and Iggy try to recreate Mom and Papá's beach anniversary tradition at home; it's Chiles en Nogada Day, but when Papá loses the recipe, it's up to Rosie to figure out who else might have it.

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.

Alma and Rafia want to keep a bird's nest safe; Alma and her friends look for a litterbug.

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

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.

Actors Ted Danson, Mary Steenburgen and William H. Macy trace their nonconformist ancestors back to the Puritan establishment.

Jenn visits Washington's Cherry Blossom Festival and plants a tree; Mark learns how Mount Rushmore was built and shows stone cutting; Nathan visits Abe Lincoln's house then replaces mortise hardware.

The Shoeneck family discover their daughter Kenedi's malignant tumor after an unexpected fall.

Insight into maintaining balance, well-being, and open communication.

Scientists, patients, and families reveal how the brain adapts to trauma, disease, and challenges.

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.

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.

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

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

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.