WGBH

Alexa's investigation into the death of a surfing champion brings her to an old childhood haunt.

The team look forward to welcoming a new recruit into their midst, whilst Mervin cannot wait to get off the island; before he catches his flight, he becomes embroiled in the murder of a young man who is found in a ravine.

Hannes is propositioned by a former colleague. Nina and Lukas investigate the mysterious death of a young journalist.

Tracking major changes in scientific understanding about Earth, from flat Earth legends to Galileo's telescope.

Moments in history that reshape the solar system and provide an understanding of the universe.

When an episode of Bionic Bunny is interrupted, Carl is the only one who can recall what comes next; Larry, the class bunny, wanders off.

The Mobile Unit tries to convince Soundcheck to get back together again.

The Wild Kratts are busy coloring eggs for Easter; the bros think an adventure can be to go find the real Easter Bunny; Chris thinks it's the snowshoe hare, while Martin thinks it's the jackrabbit.

Lily and her family discover a surprise and also embark on a weather hunting expedition.

Luke, Lyla and Everett test vacuums; Lyla makes cookies using substituted ingredients.

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.

Jodi's asthma makes it hard for her to run around with her friends during a game of Splat Ball; Daniel feels left out when there's no room for him to play at the xylophone.

Phoebe and Jay use Miss Jean's field guide to identify their new butterfly friend; Phoebe gets courage to perform at the talent show.

Alan has many food deliveries to make at Hooper's and needs vehicles to finish them; Elmo, Charlie, and Rosita help Alan by riding their scooter and bikes to deliver food to customers.

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.

Donkey must wait for all her pals to get together before she can open a big present; Panda throws a party on Planet Purple to celebrate his mama's birthday.

Rosie, Javi and Uncle Steve use landmarks to get to Calvin's bakery; Rosie, Iggy and Javi lose their Easter eggs.

Ari tries to make the world's tallest toy block tower, but it keeps falling over; Elinor and Ari try to teach Ari's baby sister how to walk.

Alma and André help Junior write a story; Alma and Eddie surprise Nestor and Gloria.

A routine science expedition with Grandpa Nat and Nina becomes a rescue mission; Molly and Mom join Randall and his family in Sitka for their traditional canoe trip to Celebration in Juneau.

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.

A visit to Rustico in Cuauhtémoc; a delicate tart made with goat cheese and fig; sampling bold ice cream flavors in Colonia Roma.

A flavorful tandoori salmon; favorite kitchen gadgets under $15; a tasting of yogurt; broiled smashed zucchini with garlicky yogurt.

Tracking major changes in scientific understanding about Earth, from flat Earth legends to Galileo's telescope.

Evidence from archaeology, Roman historians, Jewish texts and the Gospels suggest that Roman power politics brought about the events that eventually led to the crucifixion of Jesus Christ.

Laying out the wiring for radiant floor heating; custom kitchen cabinets; work is done on the built-in bookcase.

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.

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

Kings and prime ministers studied at Oxford and Cambridge universities; Blenheim Palace, the birthplace of Winston Churchill; Ironbridge Gorge.

Christine Boutros learns to redefine home when her son moves halfway across the globe; Don Broussard finds home in human connection; Kateryna Akymenko returns to Kyiv as war begins.

Teams compete from a statewide roster to become the next academic champions.

Following the dancers of the Martha Graham Dance Company as they tour the world.

Behind the scenes of the 1964 stage premiere of "Swan Lake," choreographed by Russian dancer Rudolf Nureyev.

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

Attorney and financial expert Markwei Boye shares essential tax and money management strategies for both small businesses and individuals.