WNPT-DT

British General Cornwallis struggles to pacify the southern states; supported by the French, a victory at Yorktown secures independence for the Americans.

The many species of the wild dog family, from the formidable Arctic wolf and the talkative Dhole to the tiny Fennec fox and the long-legged Maned wolf.

Secrets to the canids' success, which enables them to survive and raise families in the most extreme locations.

A 1960 Ansel Adams Portfolio III: Yosemite Valley; a Persian Qashqai Gabbeh rug circa 1935; 1959 JFK's boxer shorts with signed photo.

An all-standing workout improves balance, flexibility and mobility.

Using the Triangle and Half Moon poses to ground one's energy in order to create inner balance.

The brothers come across a marsupial opossum while searching for Chris' lost goggles in the swamp.

Benny's toy penguin is swept away by melting snow, transforming a day of sledding into an urgent rescue mission.

Lyla trains Stu to help at the diner; Stu learns how to ride a scooter.

Forrest makes too many plans on the same day; Carl and Arugula build an epic marble run but fail to get the marble to run.

Daniel and Dad Tiger go to the Dad and Me Camp-out, where they run into Katerina, who arrives with her mom; Daniel and Mom head to the Mom and Me Game Night.

Trini is discouraged because she can't add her own moves to the Lynx Dance; Molly hopes to catch a Yukon River king salmon.

Dusty, Dott, and Alphabott team up to explore the letter i -- how it is written, the short sound it represents, and words that use the letter i; Dusty and Dott discuss good hygiene practices for staying healthy.

Different centers of gravity; making a balanced sculpture; physical therapist Jill Marlan.

Ethics in business; the downside of not following ethical business practices.

When Telly learns that earthworms are invited to Abby's garden party, his friends help him feel less scared.

Rosie accidentally gives away her doll Lele on Donating Day; Rosie and Galita volunteer for Seniors Day at the Nature Center.

Bob Dog brings a ball to the Stuffie Playdate; Frannie Fox invites Donkey to her swamp, but she feels nervous about playing in it.

Phoebe and Jay learn how to sort items; Phoebe and Jay learn how to make food labels, so everyone can participate in the potluck.

While delivering chocolates, the kids learn that warmer temperatures can melt treats; the kids help Mr. Raccoon calm down when he is having a bad day.

Sammy plans a surprise Carnaval for his dad while Quique plans a surprise treat for his son; Malik performs a magic trick.

All the agents want a piece when a new room opens up in headquarters; when the tubes are down for maintenance, getting a villain back to headquarters proves difficult.

Arthur gets a new piano teacher; Buster volunteers to sell candy for the band.

Easy-stretch yogurt pizza dough; arrabbiata slab pizza; tarte flambee; how to turn a kitchen into a pizzeria.

Identifying an Early Frame pea from Little Mountain, S.C., and returning it to Monticello.

Actor Michael Douglas and writer/director Lena Dunham explore their family roots.

A Lambert magician automaton circa 1900; Ray Bradbury archive; Fred Myrick scrimshaw tooth circa 1830.

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

The story behind David Attenborough's wildlife documentary series "Life on Earth," which changed his life forever.

How discoveries over the past 50 years have revolutionized people's understanding of the universe.

From Kenya to Mexico, people and wildlife find a harmonious balance in Earth's most vulnerable landscapes.

Exploring the global impact of humans, from Yellowstone to Mozambique.

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

A weekly Tennessee gardening series featuring tips, recipes and tours.