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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.

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

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

Actor and filmmaker Ben McKenzie unpacks his documentary "Everyone Is Lying to You for Money" and why he argues the crypto boom is built on hype, risk, and deception.

Combining various exercises to encourage perceptual motor fitness to strengthen communication between the body and the brain.

Fred and Mr. McFeely visit a recycling center.

While doing their annual Laundry Day, the Kratt brothers disagree on what is better -- blue oceans or green forests.

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

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

Elmo's bike is great, but Abby's bike might be even better; Tamir teaches Elmo how to deal with feeling jealous and to enjoy the things Elmo already has.

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

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.

Learn about Iowa Deaf Baseball Camp, the Sharks synchronized swimming club and minibikes.

Actor and filmmaker Ben McKenzie unpacks his documentary "Everyone Is Lying to You for Money" and why he argues the crypto boom is built on hype, risk, and deception.

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

Social, political and economic trends of American agriculture.

The New York Philharmonic and an international cast tell the story of Jewish refugees during World War II.

Set in the Swiss Alps, Rolando Villazón's production of Bellini's poignant tale of love lost and found features Nadine Sierra as Amina.

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.

When a suspect in the Gloria Hendrix case is found murdered, Cora risks everything to catch the perpetrator.

Lionel (Geoffrey Palmer) invites Jean (Judi Dench) to meet his 85-year-old father (Frank Middlemass) who announces he's getting married again.

Blamire has run off with a woman, and his replacement, Foggy Dewhurst, proves himself to be something of a trouble-maker.

As Marlon faces a difficult decision about his future, he's also forced to confront his past when his old boss is murdered, and the only witness is his pet parrot.

Hunting for truffles; artichoke festival; farmhouse feast; a ride through cypress groves.

Exploring Bologna's Piazza Maggiore, hidden canals and walking the portico to the San Luca sanctuary; shopping the Quadrilatero; a historic cutlery shop; a twins-run leather boutique.

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.

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

A gentle standing and bar workout helps relieve foot pain and shin splints.

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.

Peg and Cat wait for a package; a thief on the Peg Plus Cat Express.

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

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.

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

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.

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

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.

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

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.

A power suit malfunction turns Martin into an oak tree.

Spanish culture; windsurfing in Tarifa; Rock of Gibraltar; sailing to Tangier.

Julius Cohen yellow diamond earrings; a 1928 Gibson Granada banjo; a collection of original comic art dating back to 1937.

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

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.

An adventure across Iowa's scenic byways, enjoying the historic sites, unique attractions and natural beauty along the way.

A foraging couple in Story City, an autism awareness advocate, and the Urban Bike Food Ministry.

When a murder takes place at a makeup demo party, Sister Boniface strives to solve the mystery.