K28KK-D

A look at whether giant asteroid impacts were actually essential for the creation of life on Earth.

New evidence sheds lights on the life and mysterious collapse of Cambodia's ancient jungle city.

Experts combine history, archaeology and forensic investigation into a quest to prove women fought alongside men in Rome's ancient amphitheaters.

First responders struggle with the trauma of the Crans-Montana fire; green solutions for the housing crisis; lighthouses in Norway.

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

Science, health, technology and environment experts and professionals address issues such as artificial intelligence, race, medicine and climate science.

Margaret Hoover leads interviews and debates.

Functional movements and breathing and posture techniques; stretching the piriformis muscle; tai chi stretch segment.

Preparing food in a restaurant; X the Owl's bossiness angers Henrietta.

The Loops go on a scavenger hunt around the supermarket to solve clues to get tickets to "Oaty Zappers on Ice"; Lyla tries to act older so she can hang out with her cousin.

Lotta is frustrated learning a new dance, but realizes it is ok to experience music in her own way; Sheldon worries about telling Carl that he doesn't want to play pirates anymore.

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

The Fuentes Family gets a hammock from Abuela, but the kids must set up rules to keep things fair; Tía baked Iggy a dino cake for his birthday, but Rosie and Javi break her rule of not touching the cake, and now it's smushed.

Elmo, Grover, and all their friends help Charlie build a Little Library for her Mitzvah Day project for her synagogue. Helping neighbors share books is Charlie's way of making the world a kinder place.

Ren and the CyberSquad use their math skills to plant a garden in an unlikely space; Hacker receives an unexpected valentine.

The Wild Kratts discover how pond animals survive during winter.

See how service dogs help veterans, meet a student inventor and visit Byron's Bar.

Margaret Hoover leads interviews and debates.

Experts analyze prominent international affairs topics and America's role in a shifting world.

Social, political and economic trends of American agriculture.

When a body is pulled out of a well, Barnaby is convinced Melvyn Stockard is somehow involved.

Panic grips the small town of Midsomer when it is realized that a serial killer is perpetrating a random murder spree.

When the body of arrogant beauty is discovered by the pool at her manor house, Barnaby and Troy uncover a seedy world of adultery and deceit.

A look at the life of Princess Margaret, whose life and loves reflected the social and sexual revolution that transformed Britain during the 20th century.

Charlie Phelps hires Eliza for a case involving his uncle, Dylan Cooper; it turns out that Scotland Yard is also after Cooper, putting Eliza in the middle.

Tristan's romance with Charlotte is blossoming but he's nervous about impressing her dad.

Book must race against time to uncover the truth before anyone else ends up dead; Jack gets an unexpected answer when he confronts Trottie and Book.

Carlos and Alberto come to blows when he harasses Ana after their breakup; Isabel grows unwell; Barbara gives Enrique an ultimatum.

The punk-pop-art-dance band The Suburbs; Matt Wilson of Trip Shakespeare fame.

Nobody can escape the lens when Blamire takes up photography.

Phryne's Aunt Prudence opens her home to psychiatrist and natural healer, Hayden Samuels, to conduct his sanatorium for "hysterical" women.

A tranquil cruise along the rivers and canals of France's Burgundy region; tasting the vintages of the Cote-d'Or.

A guided tour of Zurich; Museum Fur Gestaltung; Felsenegg cable car ride; Mount Uetilberg; Hiltl, the oldest vegetarian restaurant in the world; Yonex Badminton Halle.

Charlie Phelps hires Eliza for a case involving his uncle, Dylan Cooper; it turns out that Scotland Yard is also after Cooper, putting Eliza in the middle.

Tristan's romance with Charlotte is blossoming but he's nervous about impressing her dad.

Book must race against time to uncover the truth before anyone else ends up dead; Jack gets an unexpected answer when he confronts Trottie and Book.

Experts analyze prominent international affairs topics and America's role in a shifting world.

Strengthening and stretching the ribs, shoulders and back while rebalancing hips and hamstrings.

After a groundhog predicts more winter weather, Benny is convinced he will have snow on his birthday so he plans a snow-filled birthday party.

Lyla, Everett and her sisters build makeshift carnival games for their brother, Luke, using household and recycled materials; Louisa seeks help to create a special beat for her school presentation.

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

Daniel visits the post office and learns how letters are sorted and mailed, then sends a letter to Dad; Daniel and Dad Tiger surprise Mom with banana bread.

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

Rudy is afraid of getting a shot at the doctor's office, so Nina and Abby play pretend to show what the visit will be like so he can feel less scared.

Zadie creates a Treeborhood photo album to trace the growth of their beloved tree from little to very big; Mr. E judges a sculpture contest.

Panda's pals cheer him on during "Masked Veggies"; Donkey and Panda host King Friday for a day.

Rosie goes ice skating with the Purple Knight; Rosie and Javi go to the desert to watch a meteor shower.

Elinor and friends wonder about what happens to fish when the lake freezes in the winter; while the kids are playing pirates, Ari realizes he forgot where he hid the treasure.

Peg and Cat help Odysseus navigate the Odd Sea.

Molly and the gang organize an outhouse race to determine who will become Winter Champions; Molly creates a tutorial video to help Merna train her dog to find her keys.

Daniel visits the post office and learns how letters are sorted and mailed, then sends a letter to Dad; Daniel and Dad Tiger surprise Mom with banana bread.

Zadie creates a Treeborhood photo album to trace the growth of their beloved tree from little to very big; Mr. E judges a sculpture contest.

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

After a groundhog predicts more winter weather, Benny is convinced he will have snow on his birthday so he plans a snow-filled birthday party.

Jesse Owens encourages Brad after he becomes frustrated with bowling; Ella Fitzgerald inspires a nervous Brad to go to a dance party.

Alma is consumed with her starring role in a musical; Alma and Harper have a playdate at the Rivera house.

Muffy worries she is no longer needed when her friends plan a successful bake sale without her; Arthur stands up for Mrs. MacGrady.

The Kratt boys learn about hibernation when Aviva falls into a deep sleep.

Street art, trendy dining and Charles Rennie Mackintosh architecture in Glasgow, Scotland; touring historic Stirling Castle; bagpipe lesson; the Speyside Whisky Trail; Manhood Stone.

A Salvador Dalí "The Art Institute" etching; a 1964 Frank Sinatra letter; a Mississippian culture effigy pot, 900-1500 AD.

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

A 19th century C. Jim Williams-owned Federal hunt board; Jesse Arms Botke oil circal 1940; a 1978 Tom Petty and The Heartbreakers-signed poster.

A 1977 Pelé-signed soccer ball; a 1933 RKO King Kong Bachrach photo; Winfred Rembert's Moonshiners painting circa 2001.

An adventure across Iowa's scenic byways, enjoying the historic sites, unique attractions and natural beauty along the way.

Explore the Underground Railroad Ride, the Groundswell Cafe and a non-profit in Clinton.

The life of Harriet Tubman, a conductor of the Underground Railroad who helped guide enslaved people to freedom; narrator Alfre Woodard.

Sister Boniface sets out to unravel the identity of the Good Samaritan killer.