KGTF-DT

How the "Don't Tread on Me" flag has been co-opted by a wide variety of Americans over its long history.

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.

A 1915 San Diego Exposition poster; a Joan Crawford archive circa 1940; a Margaret Bourke-White photograph of Gandhi.

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

Experiencing the hidden wonders of San Diego, where humans and wildlife coexist in the country's most biodiverse urban landscape.

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

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

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

Sign off.

Arthur feels embarrassed over D.W.'s imaginary friend; Arthur and Binky search for Arthur's lost library book.

Villain mastermind William Ocean plans to cover the entire world in water; the Dream Weaver turns Little O's dreams into nightmares.

Martin and Chris encounter what could be the last largest lobster.

The Hunters head to a nearby mountain to learn about snow.

Lyla gets a strike her first time bowling but gets frustrated when she realizes bowling isn't as easy as she thought it was; Lyla feels left out when Everett and Ale's friendship thrives.

Arugula and Carl go on an adventure as archaeologists; Carl spots a UFO on Mother's Day.

Daniel helps Katerina reassemble her tea set after it is knocked on the floor; Daniel helps finish a story about dinosaurs.

Rosie performs in Papa's mariachi band; Rosie wants to sing a corrido for the family talent show.

Elmo, Tamir and their friends are making a Peace Tree to celebrate Martin Luther King Jr. Day.

The search for Mr. Splendito tickets is on; the Wombats power-clean a bunch of bikes.

Donkey opens a potato stand so she can share her potatoes with her neighbors; Donkey surprises Clyde with a playdate in the sky.

Ms. Penny shows the class how to make origami stars; Pinkalicious and Kendra compete against Peter and Robotta in a scavenger hunt.

The kids learn the benefits of eating different colored foods; Olive tries to get a picture of a puffin.

Alma and Howard search for a Black cowboy in the Bronx; Alma and Junior open a play hair salon at home.

Molly invites Oscar to go mountain climbing with her and Grandpa Nat, but he is afraid of heights; Travis returns to Qyah to photograph a rare willow ptarmigan.

Yadina gets advice from Abraham Lincoln after she accidentally loses her friend's toy; Jane Jacobs inspires Xavier, Yadina and Brad to rebuild their fort.

Pastry chef Norman Love prepares savory puffs, salmon mousse eclairs and marscapone vegetable medley.

The architect explains his vision for the property; exploratory demo; a lesson on first period homes; the team hopes to uncover the original timber frame during demo.

The myths and realities of the American cowboy.