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Airplane engine parts; Civil War cannon; a 20th-century saddle may have belonged to a rodeo cowboy who created the role of the Hollywood stuntman.

The story of Wes Jackson, a visionary scientist, farmer, and co-founder of The Land Institute. Jackson inspired a global movement toward sustainability through his work in perennial and natural systems agriculture.

Farmers and ranchers explore agrivoltaics -- a new approach that combines solar power and agriculture -- which may help sustain farms, livelihoods and the planet.

At the Church of the Holy Sepulchre in Jerusalem, an orthodox Christian must deliver a holy flame into the hands of his bishop; at the Boudhanath in Nepal, a Buddhist painter battles the elements in honor of Buddha's birthday.

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

Seated twists.

Exercises designed to stretch the hamstrings.

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.

A farm in Henryville, Ind., that produces various cheeses and gelato flavors from goat milk raised on the farm; chive chevre crostini with spring onion and green garlic confit; goat cheese gnocchi with ramp pesto and goat cheese truffles.

The Wilder Homestead in Malone, N.Y., the boyhood home of Laura Ingalls Wilder's husband Almanzo.

Host Fiachna Ó Braonáin, singer-songwriters Wallis Bird and Evie join concertina wizard Brenda Castles to share songs, stories and tunes about bees, folklore, Germany and more.

Working with lightweight thread, particularly silk.

Horticulture expert Dr. Chris Cooper and other experts share their garden wisdom and answer e-mails and letters about lawn and gardens.

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

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.

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.

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

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.

Featuring the art, history and cultural heritage of western Minnesota and beyond; funding for the production of Postcards comes from the Minnesota Arts and Cultural Heritage Fund.

Arborist Evan Amundson, COO of Carr's Tree Service, explains how arborists diagnose problems and provide practical solutions for complex tree issues.

Love, therapy and resolve help a woman whose addiction leads her to years in prison.

Visiting Chicago's record stores including Dusty Groove, Shuga Records, Out of the Past Records and Beverly Records.

Country Music Hall of Famer Tanya Tucker sings songs from "Sweet Western Sound"; Brittney Spencer performs songs from her debut "My Stupid Life.".

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

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