WQED-DT

Jupiter's gravitational force made it a wrecking ball as it barreled through the early solar system, but it also helped shape life on Earth as it brought comets laden with water and possibly the asteroid that put an end to the dinosaurs.

The story of how Frederick Douglass, a man born into slavery, became one of the most prominent statesmen and influential voices for democracy in American history.

Following the Bee Gees from their roots in England to superstardom on a global scale.

Arthur's snow shoveling business is booming, until Buster decides to compete against him; Brain wakes up to find he is a cockroach.

Opie hosts the Odd Squad Superfan tour but finds out a villain has joined in disguise; Orli and Ozzie must solve 37 cases in order to get access to an exclusive club.

Martin and Chris borrow Aviva's half finished night vision goggles to search for a mysterious nocturnal creature in the Indonesian forest.

It's an exciting day for Lily and her family when they move into their new house.

Lyla and Everett make a lemonade stand to raise money for the animal shelter; Lyla and Everett learn Double Dutch to become part of a neighborhood crew.

Carl surprises Sheldon with a lemonade stand, but is confused when Sheldon runs off; Carl's caterpillars turn into butterflies.

Prince Tuesday baby-sits for Daniel; the kids help Miss Elaina find her locket.

Rosie and Javi make flowerpots using repurposed items for the Robot Picnic; Rosie and Javi open a car wash to clean Iggy's ride-on car.

The Amazing Zero and Elmo are on Sesame Street to help people by taking everything away when they need it to get to zero.

Zeke and Louisa open a mud pie stand; Mr. E yearns to paint a square.

A visit to Lisbon, Portugal, features cod, hot pastries, a stroll of the city's back lanes and fado music; exploring castles of Portuguese royalty in Sintra.

A royal tour of London begins at Buckingham Palace; Houses of Parliament at Westminster; Churchill's underground war rooms; cruising the River Thames to the Tower of London.

A Keith Haring archive; Harry Bertoia brooches; an 1835 "City of Detroit" map.

Siegfried hires an experienced bookkeeper; James and Helen take inspiration from "Carpe Diem" and make a long-awaited decision.

America Ferrera and Darren Criss uncover their immigrant roots.

The efforts of a group of intrepid reporters to let the world know the truth about the bombings of Japanese cities Hiroshima and Nagasaki during World War II.

A look at the documentary series by Ken Burns that illustrates how the American Revolution came to life.

A regular panel of guests from across the political spectrum discuss the biggest international stories of the day, along with news-making interviews and analysis from BBC correspondents around the globe.

Live news program produced out of BBC's Washington, D.C. bureau; host Sumi Somaskanda.

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

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

A woman finds herself on a transformative journey as she nurtures wounded hummingbirds amid the glamour of Hollywood.

Investigating explosions in Siberia and other evidence that melting soil in the Arctic is releasing vast amounts of methane, a potent greenhouse gas.

Survivors race to rebuild stronger one year after the wildfires in LA.

The conditions of forests in the western U.S.; the history of forest management; the critical need for interdisciplinary approaches to forest restoration.

Author Mitch Albom talks about his sportswriting career and his book "Twice.".

Selector Records; Black Water; Third Man Records.

Gentle flexibility and range of motion exercises can improve posture and help reverse the signs of aging, improve organ health and increase energy.

Sheléa performs Aretha Franklin's greatest hits with the Pacific Symphony, conducted by Music Director Rickey Minor.

A journey across France showcases the craftsmanship and cultural charm of the country's most remarkable artisans.

Tony Bennett performs duets with a celebrated roster of performers including Marc Anthony, Gloria Estefan and more.

Muffy helps Francine deal with the death of her Bubbe; Arthur and Buster try to make the family vacation more exciting.

Agents talk about how gadgets helped them; someone with an odd problem visits headquarters.

Sloth bears have unique powers, including the ability to harness the power of suction to acquire food.

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

Everett faces his fear of water by taking a swimming lesson; Lyla doesn't want Miss Emmaline to move.

Carl makes a new friend while visiting his dad; Lotta thinks if she copies Nico, everyone will like her.

Daniel is excited to share his book at show and tell; Daniel and Katerina have a tough time waiting at a restaurant.

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

Nina and Abby help Rudy feel less scared about going to the doctor; Tango runs away from Elmo at bath time.

Fergus plans an epic anniversary date for Felicia; the Fishmans want to put on an underwater circus act for the Treeborhood.

Dancing on the beach in Nazaré, Portugal; medieval abbey in Batalha; royal library; port wine; exploring Porto, Portugal.

Jogging in Hyde Park; British Museum; Victoria and Albert Museum; East End food tour; celebrating London's regeneration.

A Civil War presentation sword and portrait; Danny Lyon Civil Rights posters; a copy of "The First Men in the Moon" signed by Neil Armstrong.

Busy and exhausted, James and Helen cannot get any time together; James hires a new trainee vet, but things do not work out as he expects.

A woman finds herself on a transformative journey as she nurtures wounded hummingbirds amid the glamour of Hollywood.

Wildlife photographer Todd Gustafson captures competition for mates, courtship, family, hunting, and flight to illustrate the hidden life of East African birds.

Footage includes newborn Kalahari meerkats, the hunting skills of Magellanic penguins in Argentina and an orphaned chimp in Cameroon.

A regular panel of guests from across the political spectrum discuss the biggest international stories of the day, along with news-making interviews and analysis from BBC correspondents around the globe.

Live news program produced out of BBC's Washington, D.C. bureau; host Sumi Somaskanda.

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

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

Following his success as a printer in Philadelphia, Benjamin Franklin earns worldwide fame from electricity experiments and then turns to politics.

Benjamin Franklin helps Thomas Jefferson craft the Declaration of Independence in Philadelphia; in Paris, Franklin wins French support for the American Revolution; Franklin works on the U.S. Constitution.

Dr. Emeran Mayer explores the interconnectivity between the gut and the brain, and reveals strategies for mental and physical well-being.

Live recording of the 1992 tribute concert for Queen singer Freddie Mercury; performers include Elton John, Robert Plant, Annie Lennox and David Bowie.

The band performs in London; songs include "Everlong," "Monkey Wrench," "My Hero," and "Learn to Fly.".

D.W. is afraid of octopuses at the lake; Buster discovers an unusual bone on a dinosaur-fossil dig.

All the agents want to appear on Orchid's talent show; villain report card day.

The Kratts search for the tiger, the world's most powerful wildcat.

The Hunter kids head to the state park to learn why leaves change color.

Lyla and Everett design a waffle costume for Stu; Lyla creates an original game to reignite everyone's interest in family game night.

Carl gets a universal screwdriver for his birthday; a storm creates a hole in the walkway to Carl's house.

Daniel makes snow footprints his own way; Katerina is upset when she can't read like O, but she learns to read in her own way.

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.

Grover and Cookie Monster learn all about how to take care of a kitten.

Zeke is distraught after leaving Snout behind on the Moo Moo Choo Choo; Detective Wombats search for a missing remote control.

The ins and outs and pros and cons of cruising, including making smart use of limited time on shore and the congestion and commercialism that comes with mass tourism.

Dalmation Coast; hiking through Plitvice Lakes National Park; Zagreb; Istrian Peninsula.

A 1969 Rolex Oyster cosmograph; an English bass violin; Susan Butcher's 1990 Iditarod trophy.

Carmody is challenged with learning how to be a vet; the new farmers have an illness among their herd; Helen rallies the community to help the newcomers while she awaits some personal news.

Investigating explosions in Siberia and other evidence that melting soil in the Arctic is releasing vast amounts of methane, a potent greenhouse gas.

Survivors race to rebuild stronger one year after the wildfires in LA.

The conditions of forests in the western U.S.; the history of forest management; the critical need for interdisciplinary approaches to forest restoration.

A regular panel of guests from across the political spectrum discuss the biggest international stories of the day, along with news-making interviews and analysis from BBC correspondents around the globe.

Live news program produced out of BBC's Washington, D.C. bureau; host Sumi Somaskanda.

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

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

A panel of journalists provides reporting and analysis of the major stories emanating from the United States capital.

Margaret Hoover leads interviews and debates.

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

Biographer Ron Chernow discusses the complex life of writer and humorist Mark Twain.

Margaret Hoover leads interviews and debates.

After nearly three years, Leluia Hall opens with a media blitz and private celebration for the staff.

Celebrating the life and influence of Little Richard as well as his role in rock history with Paul McCartney, Keith Richards, Mick Jagger, David Bowie, Elton John, Bob Dylan, Prince and Bruce Springsteen.

Full-length performances from various artists of the 1950s and 1960s, including Johnny Maestro, The Duprees, Jay Black, Little Anthony & The Imperials, Ronnie Spector, Frankie Valli, Jerry Butler and more.

Dr. Daniel Amen maps the brain networks that drive physical and emotional pain and reveals his practical, brain-based strategies that help you feel better, think clearer and live more fully.

Some of America's best railway adventures, from the Rocky Mountaineer to the Skyrail, these stories offer a glimpse into our nation's railroad history and explore how railroads defined the spirit of North America.

From briskets to bagels, a historical, genealogical and culinary journey through the Jewish American diaspora.

Chefs Lidia Bastianich and Jacques Pépin prepare recipes and share family stories.

Gentle flexibility and range of motion exercises can improve posture and help reverse the signs of aging, improve organ health and increase energy.

The Irish-based trio performs opera, classical, Irish traditional and pop music.

Dr. Daniel Amen maps the brain networks that drive physical and emotional pain and reveals his practical, brain-based strategies that help you feel better, think clearer and live more fully.

Legends of 1960s and 1970s soul music perform their biggest hits; acts include The Temptations, James Brown, Patti LaBelle, The Chi-Lites, The Spinners, Sam Moore and more.

Chic and Nile Rodgers perform a selection of songs by Diana Ross and Sister Sledge at the 2013 Jazz a Vienne music festival in France.

Host Chris Fennimore celebrates desserts with recipes for Kentucky Derby pie, loaded chocolate biscotti, Nana's Italian love cakes and truffles.

Rick Steves explores the German cities of Hamburg, Dresden, Leipzig, Frankfurt and Nuremberg, including their Baroque palaces, skyscrapers, riversides and beer halls.

The singer celebrates 50 years in show business with a concert in Atlantic City, N.J.

Bill Moyers and Campbell discuss cultural heroes and heroic journeys that all people make.

Campbell examines creation stories and explains how myths reveal spiritual potential.

Phyllis McGuire, Pat Boone and Nick Clooney host a trip back to the 1950s with a mix of live performance and archival footage featuring classic moments from artists such as Perry Como, Debbie Reynolds and the McGuire Sisters.

Following his success as a printer in Philadelphia, Benjamin Franklin earns worldwide fame from electricity experiments and then turns to politics.

Benjamin Franklin helps Thomas Jefferson craft the Declaration of Independence in Philadelphia; in Paris, Franklin wins French support for the American Revolution; Franklin works on the U.S. Constitution.

As Eliza and Blake's relationship evolves, they find working together can be a tricky prospect; newlyweds Ivy and Potts adjust to married life, a new detective settles in at Scotland Yard.

As victory in Europe is declared, there is the promise of peace at last; James is wishing for a greater sense of peace at the surgery as he juggles vet work with a busy family life and an exceptionally challenging Siegfried.

There's a new assistant to train at Book's Books, but the excavation of a nearby bombsite that's full of skeletons leads to bookselling taking a back seat.

A year has passed since Pete's suspension, and he has hidden himself away in Adelaide.

From "I'm a Believer" to "Rhinestone Cowboy" to "You Light Up My Life," celebrating the songs of the 1960s and 1970s with host Micky Dolenz.

Host Chris Fennimore presents recipes using the slow cooker, air fryer and instant pot, including Buffalo chicken wings, beef stew, egg roll sandwiches and apple cake.

The Texas Tenors perform classic hymns and contemporary music, from "Amazing Grace" to "You Raise Me Up.".

Peggy Cappy presents short exercise breaks that help strengthen and maintain the four pillars that support the body's structure -- strength, flexibility, balance and mobility.

The parents attend an open house in "Kids Are From Earth, Parents Are From Pluto"; Buster shoplifts in "Nerves of Steal.".

The Mobil Unit holds a press conference to introduce a new member.

Martin and Chris help out when a bald eagle suddenly goes missing.

Benny becomes enamored with the mail carrier, and wonders how she delivers the mail in different weather conditions.

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 turns to his friends to help him organize his plushie collection; Carl loses his bouncy ball collection.

Grandpere Tiger visits; Daniel can't decide what he wants to write on his thank you note.

Rosie searches for an item to sell at the Neighborhood Market Day, but she struggles to find something just right; Rosie and her friend Javi decide to open a slime store.

Reporters Elmo and Abby offer strategies to Nursery Rhyme characters experiencing big feelings of excitement, nervousness and frustration.

Super babysits Herbert while the Wombats help organize his surprise birthday party; Sammy's mom, Yolanda, organizes a fun photo scavenger hunt.

Exploring Ireland's Ancient East, from the Hill of Tara and Trim Castle to the sacred mounds of Knowth and Dowth.

Motel Safari keeps the spirit of Route 66 alive with mid-century modern architecture, themed rooms and neon signs; the Santa Rosa Route 66 Car Museum; Santa Fe; the Man's Hat Shop; Grants, N.M.

German candy containers circa 1910; a Donegal Arts & Crafts carpet; a 1937 "The Hobbit" first U.K. edition.

As Eliza and Blake's relationship evolves, they find working together can be a tricky prospect; newlyweds Ivy and Potts adjust to married life, a new detective settles in at Scotland Yard.

As victory in Europe is declared, there is the promise of peace at last; James is wishing for a greater sense of peace at the surgery as he juggles vet work with a busy family life and an exceptionally challenging Siegfried.

There's a new assistant to train at Book's Books, but the excavation of a nearby bombsite that's full of skeletons leads to bookselling taking a back seat.

As Eliza and Blake's relationship evolves, they find working together can be a tricky prospect; newlyweds Ivy and Potts adjust to married life, a new detective settles in at Scotland Yard.

A regular panel of guests from across the political spectrum discuss the biggest international stories of the day, along with news-making interviews and analysis from BBC correspondents around the globe.

Live news program produced out of BBC's Washington, D.C. bureau; host Sumi Somaskanda.

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

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

Finds include a 1970 Rolex "Red" Submariner watch; an 1834 Baltimore St. James Episcopal Church sampler; 1961 Ed Ruscha drawings and letters.

A Paul Revere Jr. silver tablespoon; Harry Karsten's ice axe from his first ascent of Denali circa 1913; a Zacharias Nicholas Haida totem pole circa 1890.

Tracing the enduring scars of war through the story of Cpl. JV Villarreal, a Mexican American Marine from San Antonio, Texas, killed in action in Afghanistan.

Sebak visits Pittsburgh's candy shops, highlighting their unique history, recipes, and chocolates.

Dr. Ayse Coskun, Boston University, and Josh Fluecke of Syska Hennessy Group discuss data centers.