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James tries to get home for Christmas; Skeldale House prepares for a new arrival.

After a setback on Broadway, director Charlie Summers returns to his hometown and reluctantly joins the amateur musical theater society.

Charlie's desperation to get back to Broadway draws him to the Pizazz local theater.

A medical scare keeps James grounded; Mrs. Hall faces trouble when she decides to help with the war effort.

Baby Jimmy joins James and Carmody on their rounds; Helen finds Jenny with a new best friend; Mrs. Hall tries to keep the peace between Siegfried and Mr. Bosworth when tragedy strikes.

After a setback on Broadway, director Charlie Summers returns to his hometown and reluctantly joins the amateur musical theater society.

Charlie's desperation to get back to Broadway draws him to the Pizazz local theater.

A medical scare keeps James grounded; Mrs. Hall faces trouble when she decides to help with the war effort.

Baby Jimmy joins James and Carmody on their rounds; Helen finds Jenny with a new best friend; Mrs. Hall tries to keep the peace between Siegfried and Mr. Bosworth when tragedy strikes.

Celebrating the life and career of actor Dick Van Dyke on his 100th birthday; featuring never-before-seen footage, photos and home movies that detail his legacy in show business.

Exploring the Tetons in Wyoming; rafting the Snake River, hiking to hidden locations and learning about conservation efforts.

Phil Hammond comes face-to-face with the inspiration for "Sherlock Holmes" and Maria McErlane hears how a beautiful well in Flintshire has been credited with healing powers for over 700 years.

News. Reporting on the day's international news from London and from BBC correspondents around the world.

D.W. plays a prank on Arthur when he camps in the backyard; Arthur and D.W. try to stay up until midnight on New Year's Eve.

Olive and Otto investigate a case in which people have turned into puppets; Delivery Debbie and Delivery Doug need help when their food disappears.

The team helps a beaver rebuild its damaged lodge.

The Hunters search for a way to monitor the weather after they lose power during a thunderstorm.

Lyla and Everett make pins for New Year's Eve; Lyla and Everett clash while making a fun unboxing video for Phan Hardware's Summer Sale.

Carl doesn't know what to do when Nico falls; Carl learns a new word -- shindig.

Daniel becomes jealous thinking Katerina is getting too much attention from Grandpere; Daniel and Katerina want O the Owl's science tools.

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

Lily, Qui and Ji-Young celebrate Lunar New Year on Sesame Street.

Devonte J. Squirrel moves to the Treeborhood; Devonte and the Wombats create a machine that makes ice cream using a bike.

Action from high school football.

Action from high school football.

Appraisals include a 1976 Mark Hamill-signed Star Wars poster, a 1979 Bob Ross landscape oil and a 1973 Iditarod Race sled.

An Edward Onslow Ford bronze; a 1962 left-handed Fender Stratocaster; Goldsmith Chandlee surveyor's compass circa 1790.

Leonardo da Vinci trains as an artist and craftsman in Florence; in Milan he paints a monumental fresco of the Last Supper.

The American bald eagle symbolizes patriotism, environmental activism and Native American traditions.

Appraisals include a 1976 Mark Hamill-signed Star Wars poster, a 1979 Bob Ross landscape oil and a 1973 Iditarod Race sled.

Potato Potahto / Tomato Tomahto... Let's explore these tasty fruits and veggies.

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

Twenty-four hours a day, the latest national and international stories as they break.

Fern lands a role in a community theater production but fears she is not talented enough to be a star actress; Prunella and Marina compete to read a book.

Olive and Otto help Santa find his reindeer; Oscar helps Ms. O get off Santa's naughty list.

The monarch butterfly's 2,000-mile migration.

The Hunters find a stowaway in their picnic basket, a little furry dog.

Lyla has to help multiple people but rushes each task, which makes things worse; Lyla must use her left hand after hurting her right wrist.

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.

Daniel and Prince Wednesday discover a small lizard in Daniel's backyard; Daniel and his friends learn more about their favorite Neighborhood Trolley.

Rosie, Crystal and Mom become doggie detectives to find the owner of a lost dog toy; Rosie builds a cardboard house for Gatita.

Action from high school football.

Action from high school football.

Action from high school football.

An investigation of Iran's nuclear program in the aftermath of the U.S. and Israeli strikes.

John Leguizamo and Lena Waithe retrace the paths of their ancestors.

An investigation of Iran's nuclear program in the aftermath of the U.S. and Israeli strikes.

The creation of handcrafted instruments, featuring Marc Savoy and the Savoy family, bowmaker Susan Lipkins, luthier Doug Naselroad and artist Richard Jolley.

Exploring the history, artistry and impact of personal adornment with jewelers Tom Herman, Harriete Estel Berman, Art Smith, Gabrielle Gould and Jesse Monongya.

Best moments with bats, loggerhead turtles and snakes.

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

Twenty-four hours a day, the latest national and international stories as they break.

Buster's friends learn he has asthma in "Buster's Breathless"; Halloween pranks run amok in "The Fright Stuff.".

The agents are caught in a time loop; a villain sets off a backward bubble.

Zach Varmitech kidnaps a herd of walruses.

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

Lyla overcomes her fear of rock-climbing; a riddle game about everyday objects made by Black inventors.

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.

Mom helps Daniel be empathetic to someone else's feelings; Daniel helps Chrissie look for her lost bracelet.

Rosie is so excited to celebrate Christmas with abuela in Mexico City that she forgets to bring her present.

Elmo keeps practicing and does not give up until he learns how to play "Twinkle Twinkle Little Star" on his piano.

Zadie must face her fear and go to the barber for a haircut; Malik discovers smart devices have limitations.

Action from high school football.

Action from high school football.

Action from high school football.

Animals such as reindeer, wolverines and brown bears survive in the tundra and forest of Lapland, the northernmost region of mainland Europe.

Paleontologist Kirk Johnson explores the polar extremes of the planet, including miles-high ice sheets and warm polar forests brimming with life.