KETZ-DT

Big Bird and a cast of characters including the likes of Bert and Ernie, teach children numbers, colors and the alphabet.

Lyla asks customers for their leftover pumpkins, but then gets way too many; Lyla and Luke put their sisters, Liana and Louisa, through a babysitting test.

Chris challenges Paisley Paver to a race to the top of Goat Mountain, and the winner will decide the future of the mountain ecosystem.

How appraisals from 15 years ago have changed in the market, including Andrew Clemens sand art circa 1880; a 1933 All-Star Game signed baseball; an 1886 Jasper Cropsey painting.

Henry VIII turned Hampton Court into a palace masterpiece, complete with the Great Hall.

Exploring St. James's, the palace at the heart of the monarchy, built by Henry VIII.

Queen Victoria and Prince Albert's Osborne House serves as their perfect hideaway.

William III renovates Nottingham House, turning it into Kensington Palace.

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.

Singers Ciara and Alanis Morissette examine their family histories.

The rise of politician and activist Bella Abzug and her commitment to women's rights and progressive causes.

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.

A forest sits behind a country covered bridge.

The rise of politician and activist Bella Abzug and her commitment to women's rights and progressive causes.

A look at the life and career of actress Marlee Matlin as she shares her story in American Sign Language.

Contributions from women athletes, artists, activists and more.

Exploring fullness, with a focus on Revolved Triangle Pose.

Easy-to-follow arm toning exercises increase overall strength and flexibility.

The Wild Kratts kids wake to find the praying mantis cocoons have hatched -- and 200 babies are in their room.

The Hunter kids head to the state park to learn why leaves change color.

Lyla figures out how to do a magic trick with clues from Miss Emmaline; Luke finds a puppy.

Carl and his friends clean up the Fuzzytown Park; Carl accidentally breaks the birthday present Sheldon planned to give his mom.

Daniel's teacher explains the importance of learning from one's mistakes; Prince Wednesday spills the milk when he's trying to make cookies.

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

Elmo is feeling excited and a little scared to go down the big slide for the very first time; Chris helps Elmo by holding his hand as he goes down the slide.

Daniel's teacher explains the importance of learning from one's mistakes; Prince Wednesday spills the milk when he's trying to make cookies.

Duck Duck learns how to fix her broken bookcase; Donkey welcomes Greeble the Treeble to Someplace Else.

Rosie, Iggy and Crystal make a movie; Mom finds a photo from the day they got Gatita.

The Exploring Club discovers that there is an entire community of critters living under logs; Elinor, Ari and Olive learn how rain is helpful to plants and animals.

Alma searches for the best way to greet others; Alma wants to figure out why Junior is shy around his new sitter.

Elmo is feeling excited and a little scared to go down the big slide for the very first time; Chris helps Elmo by holding his hand as he goes down the slide.

Lyla figures out how to do a magic trick with clues from Miss Emmaline; Luke finds a puppy.

The Wild Kratts kids wake to find the praying mantis cocoons have hatched -- and 200 babies are in their room.

An H. Siddons Mowbray painting; an 1802 Meriwether Lewis commission; Marilyn Monroe photos from 1953.

Singers Ciara and Alanis Morissette examine their family histories.

A look at the life and career of actress Marlee Matlin as she shares her story in American Sign Language.

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.

Discovering the wildlife and landscapes of Portugal -- including wild horses, storks, monk seals and more -- from forests to coasts.

Archaeologists uncover new truths about Pompeii, a wealthy Roman playground with dark secrets.

A survey flight over Turkey's Lake Iznik unexpectedly reveals the sunken remains of a fourth-century basilica.

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.

A glowing midnight moon yields brilliant jewel tones in the surging surf.

Archaeologists uncover new truths about Pompeii, a wealthy Roman playground with dark secrets.

A survey flight over Turkey's Lake Iznik unexpectedly reveals the sunken remains of a fourth-century basilica.

The rise of politician and activist Bella Abzug and her commitment to women's rights and progressive causes.

Singers Ciara and Alanis Morissette examine their family histories.

The balance between staying actively engaged and extending upward and outward in Half Moon Pose.

Various standing and floor exercises strengthen the entire spine and core.

The bros become marooned in the world of the mudskipper, a fish that can walk on land.

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

Lyla and Luke clean Stu without a bath; Lyla and Ale find a way to protect the callaloo plants from stink bugs.

Carl gets a universal screwdriver for his birthday; a storm creates a hole in the walkway to Carl's house.

Daniel goes on a walk with his family and finds all kinds of surprises; Daniel surprises Jodi with a heart-shaped rock.

Phoebe and Jay are asked to bird sit; photo time leads Jay to an outfit disaster.

Abby sees Nina and Charlie tap dancing and tries to keep up, but she doesn't know how to do the moves and follow the rhythm.

Daniel goes on a walk with his family and finds all kinds of surprises; Daniel surprises Jodi with a heart-shaped rock.

The pals find a box of Golden Crunchdoodles cereal; Donkey, Panda and Bob Dog want to play different things.

Rosie and Javi want to play Abuela's song for Music Night at Tia's Restaurant; Rosie wants to be an inventor.

The kids each tell a spooky tale about a creature in nature who pretends to be scary; after Ari's sandwich grows mold, and he names it Doug, he's determined to learn more about it.

Alma and Uncle Nestor get separated from the rest of the family on the subway; Alma and Junior are excited about their new neighbors.

Abby sees Nina and Charlie tap dancing and tries to keep up, but she doesn't know how to do the moves and follow the rhythm.

Lyla and Luke clean Stu without a bath; Lyla and Ale find a way to protect the callaloo plants from stink bugs.

The bros become marooned in the world of the mudskipper, a fish that can walk on land.

A 1979 Kent State apology; Patek Philippe pocket watch; Herter Brothers sideboard and table.

Discovering the wildlife and landscapes of Portugal -- including wild horses, storks, monk seals and more -- from forests to coasts.

How water arrived on Earth, and how it became the essential force behind all life -- from dragonflies to humans.

Hunters and fisherman enjoy the great outdoors in Arkansas.

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.

A death of a magazine columnist and author of fairy stories.

Humphrey and Camille investigate a death in the Saint Marie Heritage Society.

Twenty-four hours a day, the latest national and international stories as they break.

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

A waterfall sits in the middle of an early autumn forest.