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Over two decades after the Oklahoma City Bombing, investigators look back through the files and put the conspiracy theories to rest, including what happened to John Doe #2.

Tameka Simmons, general counsel and Chief Compliance Officer of Delta Sigma Theta Sorority, Inc., discusses leadership, ethics and empowerment.

Health care policy expert Lanhee Chen breaks down what's driving America's health care dysfunction - and lays out market-based ideas to fix it; he takes on the failure of GOP politicians to offer solutions and the roadblocks that keep reform stuck.

Oklahoma's only statewide newscast, for all Oklahomans.

Providing education and how-to information on horticulture.

Stories about the Cherokee Nation's people, history, and culture. Hosted by Jennifer Loren.

Rick Steves celebrates nature and culture while visiting the high points of Europe, from Italy to Austria to France.

Songs include "Don't Sit Under the Apple Tree," "Heartaches," "You're Nobody 'til Somebody Loves You," "In the Mood" and "St. Louis Blues March.".

Brenda receives a letter from the man who hosted her during her evacuation; upon her visit, she discovers that a property developer is attempting to evict him from his house and that his health and mental state have gotten worse.

When tragedy strikes a local family, Dr. Turner's treatment comes under scrutiny; Trixie worries about the future of midwifery in Britain.

Disaster strikes at Forsyte & Co. as Soames puts an end to Irene's Parisian dreams; Louisa faces a shock eviction.

Edmond continues to infiltrate the lives of his betrayers, uncovering more dark secrets; Mercedes starts to suspect Edmond's true identity.

While in Hong Kong, Fogg discovers that someone has put a hold on his credit; Passepartout puts his larceny skills to use.

A street golfer is set up to look as if he was killed in a hit-and-run, while explosives mysteriously go missing from a local quarry.

Disaster strikes at Forsyte & Co. as Soames puts an end to Irene's Parisian dreams; Louisa faces a shock eviction.

Edmond continues to infiltrate the lives of his betrayers, uncovering more dark secrets; Mercedes starts to suspect Edmond's true identity.

Uncovering the lasting impact of ragtime composer Scott Joplin on today's orchestras; a restaging of Joplin's magnum opus "Treemonisha" for the 21st century.

A look at America's founding and how the ideas and values articulated 250 years ago remain relevant to conversations about governance today.

Mapping the roots of actress Kate Burton and media mogul Barry Diller.

When the Head Nose of a famous fragrance dynasty is found dead in his study, Sister Boniface must sniff out a killer.

Martin and Chris stumble upon a rare and endangered seedling of a butternut tree; while looking for its parent tree, they only discover dead ones.

The Hunters try to help an injured bird so it can join its friends migrating south for the winter.

Lyla bakes a cake without a recipe; Everett teaches his cat new tricks using sounds and symbols.

Forrest can't wait to try everything at the Fuzzytown Friends Picnic, but gets into trouble when he is unable to wait his turn; Carl hosts a Super Blue Moon Sleepover.

Katerina wishes she had a little sister; the Tiger family performs a special song during Family Day at the library.

Phoebe and Jay are asked to bird sit; photo time leads Jay to an outfit disaster.

Cinderella needs to tell time for the ball, but her clock is broken, so Nina, Abby and Rudy wonder what tool they can use to fix it.

When Bex removes her cochlear implant and hearing aid so she can go on the waterslide, Sammy and the Wombats find new ways to communicate; the Wombats love Leiko's new mural.

Daniel Tiger and Donkey Hodie meet for the first time in Someplace Else, and Daniel's special visit takes the new pals on a surprising adventure.

Rosie helps Mom set up for story time when the Purple Knight visits the bookstore; Rosie and Javi make a strawberry horchata stand.

While helping Ms. Beaver construct a community garden the kids learn about rocks; Elinor tries to make her special dumplings all by herself.

Alma puts together a care package for Granny Isa; Beto and Rafia are nervous to play each other in soccer.

Molly helps Grandpa Nat fix the broken fish wheel; Molly learns that her dad competed in the Native Youth Olympics.

Despite all the cracked eggs, the Wright Brothers encourage Xavier and Yadina to continue their egg drop experiment; the Brontë Sisters help Brad overcome writer's block.

Katerina wishes she had a little sister; the Tiger family performs a special song during Family Day at the library.

Forrest can't wait to try everything at the Fuzzytown Friends Picnic, but gets into trouble when he is unable to wait his turn; Carl hosts a Super Blue Moon Sleepover.

Martin and Chris stumble upon a rare and endangered seedling of a butternut tree; while looking for its parent tree, they only discover dead ones.

Lyla bakes a cake without a recipe; Everett teaches his cat new tricks using sounds and symbols.

Alma puts together a care package for Granny Isa; Beto and Rafia are nervous to play each other in soccer.

Despite all the cracked eggs, the Wright Brothers encourage Xavier and Yadina to continue their egg drop experiment; the Brontë Sisters help Brad overcome writer's block.

Orli and Ozzie must find two grown-ups lost in HQ; Odd Squad goes undercover at a villain wedding.

Math is a building block of business; handbag designer; students help to save the environment.

A regular panel of guests from across the political spectrum discuss the biggest international stories of the day.

A detailed look into news stories from around the world from the BBC news desk in Washington, D.C.

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

Items reflect 250 years of American art, artifacts, crafts and collectibles; finds include a flag quilt circa 1880, a Tiffany Studios turtleback glass shade circa 1915 and an 1884 Edison light bulb.

Opposition in colonial North America to British policies over taxes, land and sovereignty escalates into violent confrontation; war gives 13 colonies a common cause.

Exploring how the American Revolution affected Britain, with sabotage, espionage and political unrest reshaping the empire.

The deaths of two heirs lead to long-lost family secrets.

The deaths of two heirs lead to long-lost family secrets.

Opposition in colonial North America to British policies over taxes, land and sovereignty escalates into violent confrontation; war gives 13 colonies a common cause.

When tragedy strikes a local family, Dr. Turner's treatment comes under scrutiny; Trixie worries about the future of midwifery in Britain.

Disaster strikes at Forsyte & Co. as Soames puts an end to Irene's Parisian dreams; Louisa faces a shock eviction.

Edmond continues to infiltrate the lives of his betrayers, uncovering more dark secrets; Mercedes starts to suspect Edmond's true identity.

Stuck without power in the bamboo forests of China, the Wild Kratts must figure out how to save the pandas, who are being turned into stuffed toys by villain Zach Varmitech.

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.

The Loops celebrate the day they met Stu; Liana finds crumbs on Louisa's pillow and accuses her of taking the last cookie.

Lotta competes in the Fuzzytown Music Maker Championship, but the noise on stage becomes too much for her and she leaves; Carl forgets his bottle cap collection at his dad's house.

As the Tiger family prepares for Margaret's birthday party, Daniel struggles when the attention is not on him; Daniel feels left out at Margaret's birthday party, until he leads Margaret and friends in a panda game and original birthday song.

Phoebe and Jay learn how to sort items; Phoebe and Jay learn how to make food labels, so everyone can participate in the potluck.

Elmo's bike is great, but Abby's bike might be even better; Tamir teaches Elmo how to deal with feeling jealous and to enjoy the things Elmo already has.

The wombats battle sea monsters, surfing scoundrels and pointy rocks on their way to make a sandwich delivery; Mr. E. buys a robot to hand out balloons.

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

Rosie and Javi both want to be in charge of the sandbox, so the kids hold an election to choose a president; Rosie and friends try to save the dino parade.

Ari tries to be quiet so his sister can take a nap, but a woodpecker keeps making noise outside; the kids learn that all animals need some sort of rest to regain energy and stay healthy.

When Tia Gloria can't make it to Alma's spring concert, Alma brings the concert to her; Alma helps Safina with the puppies at the animal clinic.

Tooey is upset when his teacher gives him a nickname; Molly and Walter are on a boat when suddenly the engine fails.

Willard Wigan shows Yadina that slowing down can help her make friendship bracelets more carefully; Maria Sibylla Merian shows Brad that he can have fun while waiting for flowers to grow.

As the Tiger family prepares for Margaret's birthday party, Daniel struggles when the attention is not on him; Daniel feels left out at Margaret's birthday party, until he leads Margaret and friends in a panda game and original birthday song.

Lotta competes in the Fuzzytown Music Maker Championship, but the noise on stage becomes too much for her and she leaves; Carl forgets his bottle cap collection at his dad's house.

Stuck without power in the bamboo forests of China, the Wild Kratts must figure out how to save the pandas, who are being turned into stuffed toys by villain Zach Varmitech.

The Loops celebrate the day they met Stu; Liana finds crumbs on Louisa's pillow and accuses her of taking the last cookie.

When Tia Gloria can't make it to Alma's spring concert, Alma brings the concert to her; Alma helps Safina with the puppies at the animal clinic.

Willard Wigan shows Yadina that slowing down can help her make friendship bracelets more carefully; Maria Sibylla Merian shows Brad that he can have fun while waiting for flowers to grow.

Omni and Osric are desperate to get off the night shift and go to a party, but they must first stop a mysterious villain; Orwell and Okra must prevent a flying machine from stinking up Odd Squad's favorite places.

Muffy wants a Dream Bouncy Castle for her party; Francine and Muffy set up their older siblings.

A regular panel of guests from across the political spectrum discuss the biggest international stories of the day.

A detailed look into news stories from around the world from the BBC news desk in Washington, D.C.

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

Actors Ted Danson, Mary Steenburgen and William H. Macy trace their nonconformist ancestors back to the Puritan establishment.

Congress puts George Washington in command of a new Continental Army; Congress declares American independence in July 1776.

Marquis de Lafayette left France at the age of 19 and helped fight for America's freedom.

When the Head Nose of a famous fragrance dynasty is found dead in his study, Sister Boniface must sniff out a killer.