K19AA-D

Engineering feats that made modern civilization possible, from the connection of roads and bridges to rail networks and a continent-wide freeway system.

Geoffrey Baer meets dancers, musicians, architects and writers in Havana and experiences the color, culture and history of the city.

Idaho state gems and gold nuggets circa 1905; 1935 Gum Inc. Mickey Mouse cards; 1826 portraits attributed to the Guilford County Limner.

A 1980 Topps basketball cards box; Marvel The Amazing Spider-Man comics; an Alexej von Jawlensky Meditation oil.

Geoffrey Baer meets dancers, musicians, architects and writers in Havana and experiences the color, culture and history of the city.

Aviva's sub prototype gets sucked into a battle between a sperm whale and giant squid.

Dot and Al announce the Hunters are spending Christmas in Nigeria, and Corky wonders if she can have a fun Christmas without snow.

Lyla and a new friend build a spaceship; Lyla learns her sisters can predict what the other wants, so she tries to do the same with Luke.

Carl blames Nico when his special crayon breaks and Nico blames Carl when his drawing rips; Lotta tries to learn to play the alto saxophone.

The children work together to create a dancing dragon; Mom Tiger helps the students decorate the classroom for Teacher Harriet's birthday.

Phoebe and Jay create a game show for Grandma; Phoebe and Jay must find the best way to spend the community coin jar money by taking a building-wide vote.

Cookie Monster gets tired from pushing his cart, so Abby uses magic to make the cart move on its own; Grover tries to deliver boxes.

The Wombats go on a quest to figure out all the elements that go into creating the perfect personal time routine; Zadie wants to make a really loud noise.

Donkey Hodie takes Cousin Hodie and Purple Panda on a road trip around Someplace Else, but the plan goes off course.

Rosie finally gets the courage to go into the Fun House at the carnival, but then finds out she doesn't have enough tickets; Rosie goes to the pet store to get something for Crystal's new bunny.

Elinor and her friends play Hide-and-Go-Seek but are unable to stay hidden from the Goat twins; an owl inspires Elinor's costume for Costume Day.

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

Four kids feel like they don't belong on their first day of school until they learn that friendship and fun come from sharing who they are.

The children work together to create a dancing dragon; Mom Tiger helps the students decorate the classroom for Teacher Harriet's birthday.

Carl blames Nico when his special crayon breaks and Nico blames Carl when his drawing rips; Lotta tries to learn to play the alto saxophone.

Aviva's sub prototype gets sucked into a battle between a sperm whale and giant squid.

Lyla and a new friend build a spaceship; Lyla learns her sisters can predict what the other wants, so she tries to do the same with Luke.

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

Four kids feel like they don't belong on their first day of school until they learn that friendship and fun come from sharing who they are.

Arthur doesn't like the new darker and scarier comic books; Arthur and Francine enter their pets in a video contest.

Coverage from Washington, D.C. and London, with a regular panel of guests from across the political spectrum discussing the biggest 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.

With more than 80,000 wild horses on federal lands and more than 50,000 in government corrals, filmmakers Steven Latham and Conrad Stanley reveal why the protection of America's wild horses is more important than ever.

The Smothers Brothers and Judy Collins host a look at the evolution of modern American folk music; performers include Glenn Yarbrough, the Highwaymen, the Kingston Trio and the Limeliters.

A celebration of folk musician Woody Guthrie's birthday features performances by Joel Rafael, Roseanne Cash and John Mellencamp.