WPTD-DT

Investigating explosions in Siberia and other evidence that melting soil in the Arctic is releasing vast amounts of methane, a potent greenhouse gas.

The efforts of a group of intrepid reporters to let the world know the truth about the bombings of Japanese cities Hiroshima and Nagasaki during World War II.

A look at the documentary series by Ken Burns that illustrates how the American Revolution came to life.

America Ferrera and Darren Criss uncover their immigrant roots.

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

Gentle stretches for the neck, shoulders and back combined with forward bends to stretch the hamstrings and hips.

Agents talk about how gadgets helped them; someone with an odd problem visits headquarters.

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

Everett faces his fear of water by taking a swimming lesson; Lyla doesn't want Miss Emmaline to move.

Carl makes a new friend while visiting his dad; Lotta thinks if she copies Nico, everyone will like her.

Daniel is excited to share his book at show and tell; Daniel and Katerina have a tough time waiting at a restaurant.

Rosie, Javi and Uncle Steve use landmarks to get to Calvin's bakery; Rosie, Iggy and Javi lose their Easter eggs.

Nina and Abby help Rudy feel less scared about going to the doctor; Tango runs away from Elmo at bath time.

Fergus plans an epic anniversary date for Felicia; the Fishmans want to put on an underwater circus act for the Treeborhood.

Trolley visits Someplace Else for a big party; Donkey thinks her pet fish is magic and will help her complete her tough-stuff-to-do list.

Pinkalicious, Peter and Kendra explore a hedge maze; Pinkalicious and Peter open a pet-sitting service.

Sloth bears have unique powers, including the ability to harness the power of suction to acquire food.

The gang comes across a fluffle of baby bunnies during a game of tag; bouncy castles in Nature Cat's backyard block the path for wildlife.

Molly faces big obstacles while training for a cross-country ski race; Molly and her family lose their lunch when a seal sneaks onto their boat and steals their food during a fishing trip.

Alma is excited when she grows a pepper that looks like Chacho; Alma rides the 6 train all day.

A 1969 Rolex Oyster cosmograph; an English bass violin; Susan Butcher's 1990 Iditarod trophy.

An unforeseen event in Poplar means that Nonnatus House suffers its biggest threat yet; Timothy returns home from university after falling ill; Sister Hilda and Sister Julienne expect more from Nancy and decide to show her what she is capable of.

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

Stay informed with the latest breaking news and headlines.

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

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

A regular panel of guests from across the political spectrum discuss the biggest international stories of the day, along with news-making interviews and analysis from BBC correspondents around the globe.

Celebrating Matariki, the Maori New Year.

Plant shopping; landscaping; a carpet factory tour; installing a butcher block counter.

Redesigning a backyard for a homeowner who hosts large dinner parties; replacing two rusted window wells.

A regional community affairs program explores solutions to complex problems in Southwest Ohio.

Biographer Ron Chernow discusses the complex life of writer and humorist Mark Twain.

Scientists and engineers learn from artists while artists use new technologies in unexpected ways; a choreographer/engineer teaches robots to dance; a robot enables neurologically challenged children to paint.

Compelling stories of artists participating in the Getty's Art & Science Collide event and how they collaborate with science and technology in unexpected ways.

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