WTCI-DT

Ari tries to make the world's tallest toy block tower, but it keeps falling over; Elinor and Ari try to teach Ari's baby sister how to walk.

Alma and her family spend the day saying yes to everything; Alma helps Junior and Emi test a hypothesis.

Molly and Stormee try to retrieve Grandpa Nat's microphone; Molly and Stormee encounter a rattlesnake.

Louis Braille shows Brad there are many ways to read; Zaha Hadid encourages Xavier, Yadina and Brad to build their treehouse in their own unique way.

Joe Manganiello and Tony Gonzalez uncover close relatives whose names they never knew before.

A look inside the Apollo 11 spacecraft on its historic journey includes classified mission audio of conversations between astronauts Neil Armstrong, Buzz Aldrin and Michael Collins.

Scientists and engineers design and construct the OSIRIS-REx spacecraft, expected to travel more than 400 million miles to collect and return samples from an asteroid.

A review of treasures from Colonial Williamsburg.

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

Coverage from Washington, D.C. and London, with a regular panel of guests from across the political spectrum discussing the biggest stories of the day.

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

Exploring Niagara Falls, its three separate waterfalls, and the mammals, birds and reptiles that surround it.

Astrophysicist Janna Levin explores black hole science.

From the snow-clad Rockies to the scorching Mojave Desert, the Colorado River nourishes wildlife and sculpts the landscapes of the American Southwest.

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

Astrophysicist Janna Levin explores black hole science.

From the snow-clad Rockies to the scorching Mojave Desert, the Colorado River nourishes wildlife and sculpts the landscapes of the American Southwest.

A 1977 Kenner Darth Vader figure; a Tippco toy motorcycle with a sidecar; a Ty Cobb professional model bat circa 1925.

Moderator Aaron Tang guides a panel through a hypothetical scenario around election issues and government integrity.

Joe Manganiello and Tony Gonzalez uncover close relatives whose names they never knew before.

Arthur and Muffy become best friends after they rescue Wilbur Bunny; Brain won't let Sue Ellen help on their school project.

Ms. O gets trapped in a mirror; Ms. O and Oksana have a disagreement.

The Wild Kratts set out to save the pangolins from Chef Gourmand Gaston, who is using the pangolin scales to make smoothies.

The Hunters search for a way to monitor the weather after they lose power during a thunderstorm.

Lyla and Luke make a hamster playground; the Loops family embarks on a journey to figure out why Stu keeps beeping.

Carl loves the new sweater his Pop Pop knit him, but it feels itchy when he wears it; Carl is nervous about his new school bus stop.

Daniel gets upset when Mom Tiger gives her attention to Margaret instead of him; Prince Wednesday gets upset when Daniel pays more attention to Prince Tuesday.

Phoebe and Jay use Miss Jean's field guide to identify their new butterfly friend; Phoebe gets courage to perform at the talent show.

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 her friends judge a Best Bronx food truck contest; Alma and Junior are excited to play restaurant in their backyard, until Howard opens a competing restaurant.

Trini must figure out how to make her mom omelets when the chickens stop laying eggs; Trini doesn't like Alaska's cold winter and thinks about moving back to Texas.

Xavier is upset thinking he won't be able to bring the museum to his friend in Japan, but Nikola Tesla encourages him not to give up; Nellie Bly helps Yadina overcome her fear of the monkey bars.

Exploring Niagara Falls, its three separate waterfalls, and the mammals, birds and reptiles that surround it.

Efforts by scientists to control invasive quagga mussels in the Great Lakes which are trapping nutrients on the lake bottom, causing widespread species loss and biological deserts.

Insider perspectives on the importance of the shipping industry with Anna Silva, manager of Cruise Ops at Port Everglades Terminal and Margaret Doyle, director of Transparensea Fuels.

CO2 emissions and the U.N. goals to reduce them, alternative low-carbon fuels and challenges to adopt them; with Margaret Doyle, director of Transparensea Fuels and Anna Silva, manager of Cruise Ops at the Port Everglades Terminal.

Appraisals at Colonial Williamsburg.

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

Coverage from Washington, D.C. and London, with a regular panel of guests from across the political spectrum discussing the biggest 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.

Listen in on intimate conversations with fascinating individuals who have made an impact in our community and beyond.

Part 1/2. A profile of Lyndon B. Johnson examines his early years in Texas politics, early presidency, and war against poverty and discrimination.

Joe Manganiello and Tony Gonzalez uncover close relatives whose names they never knew before.

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

A look inside the Apollo 11 spacecraft on its historic journey includes classified mission audio of conversations between astronauts Neil Armstrong, Buzz Aldrin and Michael Collins.

Tommy and Jeff begin work on a coffered ceiling in the living room; local Westerly granite is cut to size for backyard steps; the complex septic system goes in; Kevin learns how the interior doors are built; Jeff installs one of those doors.

From the snow-clad Rockies to the scorching Mojave Desert, the Colorado River nourishes wildlife and sculpts the landscapes of the American Southwest.

Exploring Niagara Falls, its three separate waterfalls, and the mammals, birds and reptiles that surround it.

Astrophysicist Janna Levin explores black hole science.

Arthur and friends support Mrs. MacGrady after she is diagnosed with cancer; Elwood City wrestling champion Uncle Sam shows Francine and the community how to support cancer survivors.

It's party time for the new agents; using a thermometer; associating different climates with degrees; Doug needs help with an egg situation.

The team identifies raptors and returns them to the wild.

Corky is selected to make a presentation at school during a science day celebration, but humidity jeopardizes her project.

Lyla figures out how to do a magic trick with clues from Miss Emmaline; Luke finds a puppy.

Carl turns to his friends to help him organize his plushie collection; Carl loses his bouncy ball collection.

Daniel is excited to show Margaret all the things they can do to celebrate Thank You Day at the Enchanted Garden, but plans change when Margaret gets sick.

Phoebe, Jay and Lupe practice their fire safety plan when the fire inspector visits; Phoebe and Jay buy juice from Mr. Aguilar.

Molly, Tooey and Trini find an enormous tusk while playing by the river; a glacial outburst flood threatens to wash away Auntie Cecilia's old fishing cabin.

Bruce Lee helps Xavier and Brad realize that no matter how angry they get, they are in charge of what their body does; Sonia Manzano shows Yadina that telling stories can help manage big feelings.

Astrophysicist Janna Levin explores black hole science.

From the snow-clad Rockies to the scorching Mojave Desert, the Colorado River nourishes wildlife and sculpts the landscapes of the American Southwest.

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

Listen in on intimate conversations with fascinating individuals who have made an impact in our community and beyond.

A 1977 Kenner Darth Vader figure; a Tippco toy motorcycle with a sidecar; a Ty Cobb professional model bat circa 1925.

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

Coverage from Washington, D.C. and London, with a regular panel of guests from across the political spectrum discussing the biggest 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.

An in-depth look at the life and career of John F. Kennedy, one of the nation's most beloved and mourned leaders.

The early years of John F. Kennedy's life and his enduring legacy, including his ascent to the presidency, his mistakes and his triumphs.

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