K19GL-D

A look at the lives of elephant bulls in Mount Kilimanjaro and Amboseli, including their drive for dominance and the social bonds that form between males.

Astrophysicists and engineers look at evidence that supports the existence of UFOs.

The investigation into secret network of curators and dealers that made profits off art stolen by the Nazis.

Exploring one of humanity's artistic urges -- the depiction of nature -- through landscape painting.

Light and color in art, including Gothic cathedrals, Indian court painting and modern art.

Rapper Wiz Khalifa and actor Sanaa Lathan learn about ancestors who left the American South in search of better lives in the North.

D.W. tells her friends she is a fantastic skater, but she really is not; Muffy tries to prove to her friends that she is not spoiled.

Olive explains what happened to her old partner.

While snowboarding across the Arctic tundra, the Kratt brothers discover a mother polar bear and her young cub who are enemies, but when Zach kidnaps their calf and cub they all come to the rescue.

The Hunter kids head to the state park to learn why leaves change color.

Lyla and Luke clean their room with help from Stu; Stu learns how to play hide-and-seek.

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.

Prince Wednesday wishes he weren't so little; Daniel helps Dad build a playhouse.

Rosie takes Mom out for Mother's Day; Crystal takes the kids to the merry-go-round at the amusement park.

Reporters Elmo and Abby offer strategies to Nursery Rhyme characters experiencing big feelings of excitement, nervousness and frustration.

The Wombats organize the Treeborhood Talent Show; Zeke searches for a collection to call his own for the Treeborhood's Collection Bonanza.

Donkey is nervous the first time she sleeps outside; Panda forgets his poetry notebook inside Donkey's messy windmill.

Pinkalicious and her friends build a sled run out of snow; when Felix the Frost Fairy falls asleep, Pinkalicious and Peter realize they must help so there will be winter window designs when everyone wakes up.

Olive creates a lending library so she can share her books with everyone in Animal Town; Elinor, Olive and Ari make a Nature Walk for Nature Day at school.

Alma must choose a best friend to give a friendship bracelet to; Alma helps Junior find his lost dinosaur.

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

Weight shifting exercises to strengthen the core; a circulation segment incorporates fun movements with a ball; pelvic floor exercise tip; a seated stretch segment using a ball.

Ouzo paired with regional mezzes at a local cafe on the Greek island of Lesvos; making a filo wrapped zucchini pie and white bean salad in a heritage kitchen; personal sized spiced lamb and hummus pita pizza.

A look at the lives of elephant bulls in Mount Kilimanjaro and Amboseli, including their drive for dominance and the social bonds that form between males.

Astrophysicists and engineers look at evidence that supports the existence of UFOs.

Touring Reykjavik's endearing sights; a side trip to the Blue Lagoon; the classic Golden Circle; Snaefellsnes Peninsula.

A direct-to-consumer sales program brings success to a California organic farm; a Nebraska farm family cashes in on the demand for gluten-free flour made from sorghum; a farm-to-school program brings local products into the school lunchroom.

A daily news summary from Europe with anchor Brent Goff.

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.

Five families return to their homes after rebuilding from Hurricane Helene; the location of the next project is revealed.

Using a toilet flange repair kit; essential upkeep to ensure a gas mower runs like new; installing a hidden door.

Kitty's personal confrontation with the past sends Weyse into a rage; the best kept secret in the hotel is suddenly revealed.