WTCI-DT

Nature Cat and pals realize they've come to the end of their Nature Curiosity List; Sir Galahad gives himself the title of King, moves into a castle and steals pieces of nature to make it look more beautiful.

Martin and Chris observe wild cats and dogs interacting with each other on the African savanna.

Actors Ted Danson, Mary Steenburgen and William H. Macy trace their nonconformist ancestors back to the Puritan establishment.

Opposition in colonial North America to British policies over taxes, land and sovereignty escalates into violent confrontation; war gives 13 colonies a common cause.

Neil Armstrong-signed Apollo 11 moon landing photos; a Tongan war club made around 1800; 1993 "Magic: The Gathering" beta cards.

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

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.

Tiger expert Valmik Thapar uncovers 50 years of archival footage chronicling the tiger clan of northwestern India's Ranthambore National Park.

Scientists try to figure out how to predict weather events called "rain bombs" that sink ships and down planes.

Isabella Tree and her husband, Charlie Burrell, strive to breathe new life into the ailing Knepp estate. They reintroduce native ponies, deer, pigs and other wildlife, allowing nature to thrive.

Following Ariel Waldman's solo expedition through Antarctica's extreme environments as she documents the thriving microscopic wildlife beneath the ice.

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

Following Ariel Waldman's solo expedition through Antarctica's extreme environments as she documents the thriving microscopic wildlife beneath the ice.

Scientists try to figure out how to predict weather events called "rain bombs" that sink ships and down planes.

Isabella Tree and her husband, Charlie Burrell, strive to breathe new life into the ailing Knepp estate. They reintroduce native ponies, deer, pigs and other wildlife, allowing nature to thrive.

At the Church of the Holy Sepulchre in Jerusalem, an orthodox Christian must deliver a holy flame into the hands of his bishop; at the Boudhanath in Nepal, a Buddhist painter battles the elements in honor of Buddha's birthday.

Actors Ted Danson, Mary Steenburgen and William H. Macy trace their nonconformist ancestors back to the Puritan establishment.

Arthur tries to help Prunella with her pack rat habits; Binky finds out his real name.

Ozzi and Orli go on a mission to catch the villain who is ruining the Triangle Sisters' café; Opie must collect enough money to pay for Captain O's 10-layer birthday cake.

On their annual laundry day, the Kratt brothers disagree on whether blue oceans or green forests are better; Aviva demonstrates how oceans and forests work together.

Dot and Al announce the Hunters are spending Christmas in Nigeria, and Corky wonders if she can have a fun Christmas without snow.

Lyla struggles to sleep and tries to figure out what is wrong with her sleep routine; Lyla tries to do her own hairstyle.

Nico is tired of being mistaken for her twin sister; Carl is upset when Nico breaks the Lint Dinosaur Monday rules and makes a Lint Monster instead.

Mom Tiger shows Daniel the strawberry patch; crayons are made at the factory.

Phoebe and Jay accidentally get paint on the mail and have to decode addresses; Phoebe and Jay find their parents' box of memories.

Elinor finds a peculiar-looking owl while visiting her grandparents in the desert; Olive and her friends investigate why a tree has fallen over in the forest.

Alma and Rafia want to keep a bird's nest safe; Alma and her friends look for a litterbug.

Alaska state basketball champion Kamaka Hepa offers Molly and her basketball team pointers on the court.

David Suzuki explains to Xavier that by taking care of the earth, we take care of ourselves; Esther Martinez explains to Xavier and Yadina about how stories can connect people to their family histories.

Tiger expert Valmik Thapar uncovers 50 years of archival footage chronicling the tiger clan of northwestern India's Ranthambore National Park.

Congress puts George Washington in command of a new Continental Army; Congress declares American independence in July 1776.

A Hassan el Glaoui tempera painting circa 1970; Line Vautrin Talosel mirror; a diamond horseshoe brooch circa 1900.

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

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.

An exploration of local service organizations and the impact they have in the Chattanooga area.

As World War II begins, Americans unite in their disapproval of Nazi brutality and work to help refugees escape; Germany invades the Soviet Union and secretly begins the mass murder of European Jews.

Actors Ted Danson, Mary Steenburgen and William H. Macy trace their nonconformist ancestors back to the Puritan establishment.

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

A Walpole ranch is reimagined with an ADU for aging parents, a primary suite bump-out, smarter baths and better flow from garage to new mudroom and kitchen.

Jenn visits Washington's Cherry Blossom Festival and plants a tree; Mark learns how Mount Rushmore was built and shows stone cutting; Nathan visits Abe Lincoln's house then replaces mortise hardware.

Tiger expert Valmik Thapar uncovers 50 years of archival footage chronicling the tiger clan of northwestern India's Ranthambore National Park.

Isabella Tree and her husband, Charlie Burrell, strive to breathe new life into the ailing Knepp estate. They reintroduce native ponies, deer, pigs and other wildlife, allowing nature to thrive.

Scientists try to figure out how to predict weather events called "rain bombs" that sink ships and down planes.

Muffy wants a Dream Bouncy Castle for her party; Francine and Muffy set up their older siblings.

Agents from the Big O's office threaten to shut down Odd Squad; Oona meets Dr. O's replacement.

Martin and Chris stumble upon a rare and endangered seedling of a butternut tree; while looking for its parent tree, they only discover dead ones.

The Hunters learn how temperatures can affect outdoor plants and gardens.

Lyla and Everett play basketball against their moms; Lyla and Luke restore their old toy car to make it special for Stu.

Carl can't wait for the ice cream festival; Carl is upset that he has to wear a cast on his broken wrist.

Daniel and his friends play T-ball and find that Henrietta is a dance teacher and a T-ball coach.

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

Martin and Chris observe wild cats and dogs interacting with each other on the African savanna.

Molly spends the night at Tooey's house when a blizzard strikes Qyah; Molly loses her fish charm bracelet in an ice hole.

Scientists try to figure out how to predict weather events called "rain bombs" that sink ships and down planes.

Isabella Tree and her husband, Charlie Burrell, strive to breathe new life into the ailing Knepp estate. They reintroduce native ponies, deer, pigs and other wildlife, allowing nature to thrive.

An exploration of local service organizations and the impact they have in the Chattanooga area.

A W.W. Denslow-inscribed "The Wonderful Wizard of Oz"; a Mercury space capsule wind tunnel model; black opal ring.

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

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.

A panel of journalists provides reporting and analysis of the major stories emanating from the United States capital.

Margaret Hoover leads interviews and debates.

Exploring the layered sounds of Istanbul where empires met from European classical music to modern jazz.

Jazz and blues musicians from around the globe gather to celebrate the power of music; host Jeremy Irons.

The Indiana University student jazz ensemble presents a tribute to the early jazz recording artists of Gennett Records, including Louis Armstrong, King Oliver's Creole Jazz Band, Bix Beiderbecke and Jelly Roll Morton.

CNN anchor Dana Bash and author David Fisher.

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