K21IR-D

Paleontologists discover that dinosaurs thrived in unlikely places such as the cold and dark Arctic Circle.

Human skeletal remains found in the basement of Ben Franklin's British residence may have been used for science.

Celebrating the 50th anniversary of Woodstock, the three-day concert at a farm in New York that marked the end of one of the most turbulent decades in American history.

America Ferrera and Darren Criss uncover their immigrant roots.

A workout focusing on the back and core helps to relieve and prevent back pain.

Working the somatosensory system.

A wildcat disrupts a game of badminton.

Corky is selected to make a presentation at school during a science day celebration, but humidity jeopardizes her project.

Lyla has to backtrack her hike at Moon Rock Cove to find her mom's missing phone; the Loops kids divide up kitchen cleaning chores between easy and hard, so everyone has an equal amount of work.

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.

Daniel learns the importance of sharing his feelings; Daniel pays attention to how many feelings he experiences in a day.

Jay and Lupe use wayfinding signs to track down Phoebe; Pete and Craig face an epic hoops battle on the courts.

Captain Elmo's solo mission to Jupiter is interrupted when his friends join and mess up his plan; Grover tries to fix the spaceship boosters.

It's Backwards Day in the Treeborhood; Cece, Carly and Clyde have fun with patterns.

Donkey's guitar goes missing just before the talent show; Duck Duck finally finds her family's treasure nest, but she is unable to open it.

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.

Elinor learns about different plants when she makes soup with her grandparents; Elinor and her friends don't understand why their cupcakes aren't selling.

Alma volunteers André to make necklaces for their friends; Alma, Eddie and Uncle Nestor perform music on the subway.

Molly and Tooey realize drawing is harder than it looks when they help Randall come up with a Northwest Coast design for Aunt Mema and Uncle Jack's anniversary; Molly, Tooey and Trini strike gold.

Hedy Lamarr shows Yadina that she can do more than one thing; Xavier, Yadina and Brad learn that creative thinking can lead to new ideas.

David Attenborough explores London's Natural History Museum and meets creatures from the past, brought to life by CGI, including a giant eagle and colossal snake.

David Attenborough explores how the threat of extinction for millions of species may lead to problems with food and water security, the ability to control the climate, and a greater risk of pandemic diseases.

Viewing the shapes that cover the earth's surface from space; the Australian Outback is covered in pale spots due to wombats and elephants.

A 1982 George Condo drawing; a folk-art spool table circa 1900; a Guido Gambone vase circa 1960.

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.

Exploring the west side of Austin, Texas, where hill country begins; e-foiling on Lake Austin; Laguna Gloria; bouldering on Bull Creek; Hawaiian Tex-Mex and classic barbecue cuisine.

A road trip along the Panhandle portion of "America's Highway.".

Experiencing Texas through the perspective of a storyteller.

Writer-producer Tony Rettenmaier and director Juel Taylor talk about "They Cloned Tyrone" and how they incorporated socio-political commentary into the science fiction, comedy-mystery film.

ACL inducts Kentucky band My Morning Jacket into the ACL Hall of Fame; with special guest director and journalist Cameron Crowe.

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

Exploring the history and science of cotton.

Exploring how supermarkets have reshaped lives and the planet, from New York to rural Thailand.

Human skeletal remains found in the basement of Ben Franklin's British residence may have been used for science.

David Attenborough explores London's Natural History Museum and meets creatures from the past, brought to life by CGI, including a giant eagle and colossal snake.

Paleontologists discover that dinosaurs thrived in unlikely places such as the cold and dark Arctic Circle.

A lower body workout combines standing and barre work to increase flexibility.

Using balls to release restrictions that build up in connective tissue throughout the body.

The team tries to figure out how a gecko lizard climbs up surfaces and upside down.

The Hunters investigate a weather mystery surrounding massive rocks that move on their own in the desert.

Lyla and Everett struggle to play Hot Cross Buns at the same tempo, and they learn how to read music; Lyla is upset when Luke's snack becomes popular.

Lotta is determined to show Skyler that she is more than just "headphone girl"; the new kid in school causes a hullabaloo on the playground.

Daniel teaches his friends his happy song; Daniel is excited to go to the castle for Prince Wednesday's birthday party.

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

Director Grover has the perfect plan for his play; Tamir and Cookie Monster try to fix the suitcase.

The Wombats try to save Harvest Day as it becomes overrun by fog; Zeke tries to create stew that meets Mr. E's high standards.

Donkey and Panda set big goals to achieve throughout the day; Donkey shows Mousy how to play the Donkey Way.

Rosie makes a dance party island in her backyard, but the flag she puts up causes confusion; Rosie decides to be the mascot for Javi's soccer team.

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 opens a traveling repair service, but running back and forth for fix-it supplies proves exhausting; Alma has to figure out how to handle her feelings when Howard tells Junior he can't play water tag.

Trini's excited to enter her giant cabbage into the Alaska State Fair, but a moose keeps nibbling at its leaves; Molly has to impress Aunt Merna if she wants to get her native name.

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.

Paleontologists discover that dinosaurs thrived in unlikely places such as the cold and dark Arctic Circle.

Human skeletal remains found in the basement of Ben Franklin's British residence may have been used for science.

An orphaned baby Triceratops must outwit a deadly Tyrannosaurus rex.

A traveling puppet show circa 1870; Yakama toy cradle and doll circa 1890; a 1993 Air Jordan sneaker display.

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.

As the nation nears its 250th anniversary, moderator Jeffrey Goldberg leads a panel of prominent journalists in exploring America's future.

A journey through the life of singer-songwriter Janis Ian, and how she rose as a folk icon and gay rights advocate.

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