KLRN-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.

A seated segment to strengthen legs, abdominal muscles and the lower back; standing postures to tone the legs and stretch the hamstrings and hips.

A full-body flexibility workout in a garden stretches all muscles and promotes movement.

The Squad uses math and engineering skills to fix scooters after they mysteriously break; Jackie tests her new fixing skills on a broken family heirloom.

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.

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.

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 variety of exercises to strengthen the core with an emphasis on abdominal muscles; a fun line dance to challenge coordination and balance; a visual relaxation.

A full-body flexibility workout in a garden stretches all muscles and promotes movement.

Rebecca Hall and Lee Daniels research their family histories.

Marquis de Lafayette left France at the age of 19 and helped fight for America's freedom.

The evolving meaning of the Statue of Liberty and how it embodies values and conflicts in America, from abolition to the treatment of refugees.

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

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

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

Exploring the unique evolutionary journey of woodpeckers and the role they play in every ecosystem, except Antarctica and Australia.

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.

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

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