KLTL-DT

Researching the identity of America's first peoples leads to Amazonian cave paintings, Mexican burial chambers, New Mexico's Chaco Canyon and waves off California's coast.

The rise of great American nations, from monarchies to democracies; lost cities in Mexico; a temple in Peru; a potlatch ceremony in the Pacific Northwest; shell beads in upstate New York.

An Andrew Clemens sand bottle circa 1885; a 1933 Goudey baseball card set 239/240; a Joan Miró pencil on paper circa 1965.

Arthur's not sure what to make of the new baby; D.W. considers running away to Button Island.

The agents must help some villains stop a robot that is threatening to flatten the city.

A giraffe takes Creature Power Suit parts and supplies from the Tortuga.

The Hunters find a stowaway in their picnic basket, a little furry dog.

Liana accidentally submits art that Stu made and feels guilty taking the credit for his work; Lyla and Luke perform an "Anansi" folktale puppet show.

Carl surprises Sheldon with a lemonade stand, but is confused when Sheldon runs off; Carl's caterpillars turn into butterflies.

Daniel Tiger's treat from Prince Tuesday's fruity ice treat cart starts to melt when he becomes distracted by all the other flavors.

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

When Oscar tries to find someone disappointed by his disappoint-o-meter, he accidentally makes them happy.

When Bex removes her cochlear implant and hearing aid so she can go on the waterslide, Sammy and the Wombats find new ways to communicate; the Wombats love Leiko's new mural.

Donkey Hodie and pals help Purple Panda celebrate his first Halloween in Someplace Else.

Rosie tries to be a reporter but has trouble finding things that are newsworthy; Rosie and Jun believe there is a jalapeno giant on the loose.

Elinor and her dad learn how to make their own chocolate; after accidentally breaking a jade plant, the kids learn how the plant grows.

Alma and Rafia try to give away rubber bands; Alma and Rafia think they've invited too many people to Safina's bake sale.

Rebecca Hall and Lee Daniels research their family histories.

The Outback comes to life during the dry season -- turtles lay eggs, cattle get ready for rodeos, athletes dive for pearls and a mother to marsupials sets her babies free.

Molly wants to keep a frog as a pet -- until she realizes it requires high-maintenance; Molly and Tooey can't wait to see the petroglyphs at the beach.

Carl surprises Sheldon with a lemonade stand, but is confused when Sheldon runs off; Carl's caterpillars turn into butterflies.

When Oscar tries to find someone disappointed by his disappoint-o-meter, he accidentally makes them happy.

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

Gwen Ifill shows Yadina that asking questions is a great way to get information; Matthew Henson shows Xavier and Brad that they can learn from each other.

A giraffe takes Creature Power Suit parts and supplies from the Tortuga.

A regular panel of guests from across the political spectrum discuss the biggest international stories of the day.

A detailed look into news stories from around the world from the BBC news desk in Washington, D.C.

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

Exploration of complex issues in a deeper, more personal way, with stories told by the very people facing the challenges head-on.

Archaeological investigations into the origins of democracy in Greece 2,500 years ago; mass graves and ancient ruins where tyrants were murdered shine light on the birth of a revolutionary form of government.

From New York to Kolkata, dicovering the surprising and beneficial ways urban wildlife transforms cities into thriving, shared ecosystems.

A blistering heat wave hits Kerala. Lydia decides Ruby is ready for her first solo night shift.

Lydia learns that a former patient is in the care of a herbal doctor and wants to win them back.

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