WDPB-DT

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

The dry, red planet Mars was once a blue water world studded with active volcanoes and may have even had the ingredients to support life.

Jupiter's gravitational force made it a wrecking ball as it barreled through the early solar system, but it also helped shape life on Earth as it brought comets laden with water and possibly the asteroid that put an end to the dinosaurs.

Performance footage of folk group Peter, Paul and Mary.

Arthur wakes up in a strange part of town when he falls asleep on a bus; summer vacation is ending too quickly for Arthur.

The Mobile Unit, with the help of the Big O and two Australian agents, attempts to stop The Shadow from causing trouble Down Under.

The Elevator Alligators basketball team is losing and spirits are low, but Albie, Jay and Bon Bon find a way to support the team; Zia tells Huggy a bedtime story.

It's an exciting day for Lily and her family when they move into their new house.

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

Carl blames Nico when his special crayon breaks and Nico blames Carl when his drawing rips; Lotta tries to learn to play the alto saxophone.

While flying a kite, Daniel, Katerina and O learn that it's okay to feel two different feelings; when Daniel arrives at the carnival he feels excited and scared about riding the Ferris wheel.

Phoebe learns what privacy signs are and how to use them to communicate to neighbors; Jay gets nervous about getting a haircut.

Papa Bear wants to teach Baby Bear Tee ball, but Baby Bear would rather prefer to draw the ball than hit it.

The Wombats build a wind chime to help Great Uncle Duper fall asleep; Zeke tries to make Snout out of clay.

Grampy asks Donkey to take Gregory for a walk, but Gregory won't move; Harriett Elizabeth Cow wants her pals to try her invention -- the Bounce-a-rino.

Rosie is so excited to celebrate Christmas with abuela in Mexico City that she forgets to bring her present.

The kids try to get animals to the Flower Garden for its grand opening; the kids try to find out how their snow sculptures got ruined.

Alma and Junior want to stay awake until midnight on New Year's Eve; when Eddie Mambo gets sick, Alma tries to help him get better.

Molly and Tooey think they've discovered a ghost, until they realize it's a bird stuck in a dryer vent; Molly and Trini go with Nina to the Kenai National Park to see the puffins.

Willard Wigan shows Yadina that slowing down can help her make friendship bracelets more carefully; Maria Sibylla Merian shows Brad that he can have fun while waiting for flowers to grow.

Simit kebabs; pear salsa and quince liquor; meatball tapas with peas; making Moroccan meatball tagine with couscous in the slow cooker.

Crispy fish sandwiches with tartar sauce; pepper mills; a horseradish tasting; handling extra fry oil; Rhode Island-style fried calamari.

A surprising link to a past case shines a new light on the residents of Linnet Close.

Treasures from Omni Mount Washington Resort in Bretton Woods, N.H.

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

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

Live news program produced out of BBC's Washington, D.C. bureau; host Sumi Somaskanda.

Set in Antarctica's Dry Valleys, Antarctica's glacial and icy ecosystems reveal how frozen landscapes can sustain surprising life forms.

The history of unique American horse breeds, including the mustang, Appaloosa, Morgan and quarter horse, that helped shape the nation and the people who continue the tradition of caring for them.

A team of archaeologists researches the "desert kites," the stone megastructures across northern Saudi Arabia and southern Jordan.

Battling for dominion over the river with crocs; catching glimpses of an ultra-rare mangrove snake and an endangered nabarlek wallaby; humpback whale mothers raise their calves in the ocean; false killer whales.

Set in Antarctica's Dry Valleys, Antarctica's glacial and icy ecosystems reveal how frozen landscapes can sustain surprising life forms.

Steve Adubato holds four-person round table discussions that explore issues facing society.

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