Knowledge Network

Footage of NASA's lunar missions, from Mercury to Gemini, to the Apollo Missions.

The motives behind the Gunpowder Plot of 1605, and what might have happened if it succeeded.

Inventor Nikola Tesla assists Murdoch in an investigation into the death of a man experimenting with invisibility.

Exploring Scandinavia's kingdoms of fire and ice and the animals -- including muskoxen, polar bears and arctic foxes -- who must navigate the landscape as it changes around them.

Young and charismatic priest Canon Zach Mantell shakes up Brokenwood's parish with his unconventional style; but when his wife dies in the church cemetery, Mike and Kristin find clues that point to a murder.

Julia reaches her ultimate destination, the island of Chios, where her family's story began.

Mo's side deal goes ahead, risking his relationship with his father; Tommy's firearms exam is brought forward; Stevie tries to convince Grace to come back to work.

Battling wind and waves to find a sea lion trapped in a plastic ring; visiting a rescue centre, where over 80 orphan seals must be fed several times a day to prepare for release into the wild; an Amazonian duck gets a miraculous operation.

Young and charismatic priest Canon Zach Mantell shakes up Brokenwood's parish with his unconventional style; but when his wife dies in the church cemetery, Mike and Kristin find clues that point to a murder.

Julia reaches her ultimate destination, the island of Chios, where her family's story began.

Mo's side deal goes ahead, risking his relationship with his father; Tommy's firearms exam is brought forward; Stevie tries to convince Grace to come back to work.

Battling wind and waves to find a sea lion trapped in a plastic ring; visiting a rescue centre, where over 80 orphan seals must be fed several times a day to prepare for release into the wild; an Amazonian duck gets a miraculous operation.

Exploring Scandinavia's kingdoms of fire and ice and the animals -- including muskoxen, polar bears and arctic foxes -- who must navigate the landscape as it changes around them.

The rehab is flooded with orphaned seals, with some frozen solid in ice.

Lila and Marco, two creative children, bring to life a quintet of knitted gnomes with whimsical journeys in a cozy universe made of wool.

We land on planet Plastilina and befriend three local children, Giogò, Lalà and Cucù; they play crab racing together with a ball.

Last night's storm blew a large tree down: right over grumpy Mr. Ramadillo's home; seeing that he needs their help, Tiny and Tall put aside their differences with the crusty critter; they enlist Giantina to help them collect some big rocks; then they build a pulley system, experimenting to determine how many rocks they'll need to hoist the tree off Mr. Ramadillo's hole.

In music class, Caillou tries to impress Ms. Martin by blurting out all the answers to her questions; on a long road trip to the farm, Caillou can't help but get increasingly bored, so he pretends to be on a quest to find the cure for boredom.

Amala launches a pet spa to raise money for an endangered animal, but finds herself with too many customers and a hard choice to make.

Best buddies Luna, Chip and Inkie are always eager to lend their friends a wing, paw or tentacle because helping others is what they do best.

Audrey and Tommy make educational videos with Jack to raise awareness about the situation of mountain gorillas, but Jack quickly grows tired of this new fame.

The kids tell scary campfire stories, but Charlie Brown is lost for words; Snoopy's journal sheds light on an ill-fated canoe voyage to Beagle Point.

It makes Tiny sad when the leaves leave the trees, so she tries to make the leaves stay! When more and more leaves keep falling to the ground, she learns to look at things in a different light.

Sam and Kit, now Senior Agents, head to the North American wetlands with Junior Agent Cubby to solve the case of a mysterious sound, but when they find the culprit they soon find they have other matters to deal with.

The gang treks to The Other Side of the Fence so Olly can pick the first blueberry of the season.

Kofi Annan shows Yadina and Brad that finding a compromise can help everyone; William and Caroline Herschel show Xavier that by including Yadina in his magic show, it can make it even more fun.

Isadora wants a non-magical birthday party, but Mom's magical balloons and Wilbur becoming the party magician cause Isadora and her friends to float into the sky.

Best buddies Luna, Chip and Inkie are always eager to lend their friends a wing, paw or tentacle because helping others is what they do best.

Nick and Sally are playing superheroes when Nick cuts his finger and wishes he had superhero skin.

Juan Peacock and Pequena sing a scary story about the Scarecrow and the Pumpkin Wing; Do sings his happy song to himself to make him feel better.

Preston needs to knock down his shed and Mojo has the wrecking ball to do it; but first, Mojo and Bo have to get it all the way across town.

Duggee opens the clubhouse doors and embarks on new adventures with everyone's favorite "Hey Duggee" characters.

Nina is missing a moccasin she needs for powwow workout class and jumps to the conclusion that Smudge the puppy has taken it.

When Rocky goes missing at Uncle Otis' cabin in the woods, the PAW Patrol needs to solve the mystery of the Werepuppy.

The dog is ready for his close-up; new adventures with the happy-dancing, high-flying, big-dreaming beagle who is joined by best friend Woodstock and the rest of the Peanuts gang.

Building a clubhouse causes friction between Emily Elizabeth, Samantha and Pablo.

Peg and Cat solve problems and learn foundational math concepts and skills.

Following Grizelda's orders, the Grizmos build the most dazzling tower in the kingdom, but due to so many crystals, her castle starts to sink.

Honey's kooky behavior alarms Carmen.

A bark for help leads the Adventure Rangers to a sea lion trapped on a rock; Luna, Chip and Inkie must work together as a team.

When Rocky goes missing at Uncle Otis' cabin in the woods, the PAW Patrol needs to solve the mystery of the Werepuppy; on Cowboy Day at the Wingnuts Dude Ranch, Mayor Goodway braves the hazards of the ranch while sleepwalking.

Molang and Piu Piu have to deliver a last letter to a friend who operates a gemstone mine; when they enter the mine, they are frightened by strange phenomena.

The Guppies choose their Halloween costumes, go trick-or-treating and turn their classroom into a haunted house in hopes of scaring Mr. Grumpfish.

The squirrels are helping Duggee in the garden when Tag makes friends with a very hungry caterpillar.

The everyday adventures of Carl, an autistic raccoon, who loves collecting things.

Chirp finds a golden string.

When his mom's new plant mysteriously falls over on its side, Caillou wants to find the culprit, but he accidentally offends his family when he accuses them.

JoJo and Gran Gran visit the community garden to pull up the winter vegetables. They get some help harvesting the broccoli and cauliflower from their friends Ellie and Alfie. Gran Gran later suggests they make a scarecrow to keep the birds away.

Bea and Ty create a practice camp for Sam when he gets frustrated by his basketball skill level and wants to improve.

Five-year-old Mexican American Rosie Fuentes learns how the world around her works in her suburban Texas community.

Abby agrees to let Melvin have a sleepover without realizing she'll never sleep with all of his snoring.

Following Grizelda's orders, the Grizmos build the most dazzling tower in the kingdom, but due to so many crystals, her castle starts to sink.

Cuquín keeps getting interrupted while he plays on an improvised car track; Cleo comes up with a plan to make everyone become couriers so Cuquín can play in peace.

Hoping to win the local art contest, each of the trio search for something interesting in nature to paint.

A Sumo wrestler puts on an exhibition match with Luna after Salami Strong gets injured.

Nick and Sally are playing superheroes when Nick cuts his finger and wishes he had superhero skin.

Preston needs rescuing from a stuck cable car; when the car suddenly starts moving again, Mojo has to ride the cable to chase it down and save poor Preston.

Sam and Kit, now Senior Agents, head to the North American wetlands with Junior Agent Cubby to solve the case of a mysterious sound, but when they find the culprit they soon find they have other matters to deal with.

Wizz is a blue monster who is stuck in a TV show that he does not want people to watch; Wizz's friends help him navigate the consequences of being the star of a show that he wants to escape from.

In the future, confused birds are crashing everyone's parties.

Best buddies Luna, Chip and Inkie are always eager to lend their friends a wing, paw or tentacle because helping others is what they do best.

Snoopy and Woodstock search for pirate treasure; the Flying Ace steals Sally's map; Snoopy's expired dog license presents opportunities.

Endangered bats need Hope's help, but it means taking unusual steps; Hope's deer release has a bumpy start.

Crossing the border from Northumbria to Cumbria at Gilsland; how to link a Cumbrian sausage; an aerial view of Carlisle; the journey ends at Bowness-on-Solway.

How William the Conqueror's brutal invasion of England changed the country forever.

Michelangelo's rivalry with Raphael reaches new heights while a violent religious schism engulfs Europe.

Blair has trouble with social cues; Robert has been blind since childhood and speaks five languages.

Michelangelo's rivalry with Raphael reaches new heights while a violent religious schism engulfs Europe.

Blair has trouble with social cues; Robert has been blind since childhood and speaks five languages.

Taylor and Aline travel to the Vatican where confronting the past sparks a pivotal discovery; Jake joins his family's work and a concert becomes an opportunity for reconnection and healing.

A look at the history of professional smuggling in 18th century Cornwall, where many secret smuggler's coves still exist.

Hope puts everything on the line to save an orphaned black bear cub; two bobcats are ready for release, but they won't go easy.

Lila and Marco, two creative children, bring to life a quintet of knitted gnomes with whimsical journeys in a cozy universe made of wool.

Five friends travel through space, exploring planets with one mission, to discover, play and collect all the games in the universe.

Tall is upset when his kite gets caught in a too-tall tree. Insisting that they can just play something else, Tiny encourages Tall to play catch. When a baby Gilly beast joins them, Tiny and Tall are impressed by how powerfully the beast can throw the ball back to them, using its mouth. Tall wonders whether, if they position the beast at the right angle... they just might have a chance of bonking

Caillou and Rosie travel to a farm with Grandma and Grandpa; Caillou packs toys for the trip but leaves them behind; he must find ways to entertain himself during the journey.

With two dads, Luc rules the Father's Day Fair competitions, but when Lili and Lola's dad can't join in the fun, Luc shares his dads.

Luna can't wait for her kangaroo friend Chloe to visit her from Australia, but when she arrives, she has even more energy than Luna expected.

Audrey, Tommy and Maeva spend the day with Hector to learn about his job as a vet; Audrey thinks she'll be a great intern, but when she realizes Tommy and Maeva are doing better than her, she loses all confidence in herself.

Snoopy encounters a new nemesis: a mosquito that won't leave him alone; Schroeder thinks the camp's official song is due for an update.

Tiny is delighted when Tall plans a treasure hunt for her, but his map doesn't work! Finally, they realize that a footstep for Tall looks a bit different from one of Tiny's smaller steps.

Sam and Kit investigate the cause behind the friendly rhinos' rage out at the Watering Hole hangout; the Mice Squad goes missing in the Arctic.

Chef and Olly are about to make baked apples when two apples start behaving mysteriously.

Michelangelo shows Brad that even when you want something done quickly, doing something well takes time.

When Isadora and Amma try to learn a V-pop dance, Omari tries to play it cool despite secretly loving V-pop and wanting to join them.

Best buddies Luna, Chip and Inkie are always eager to lend their friends a wing, paw or tentacle because helping others is what they do best.

Nick cuts his finger while playing superheroes with Sally; Sally and Nick need to clean up the backyard.

Do, Re and Mi witness a musically magical phenomenon in Falsetto Forest.

A girder is out of place on Swoppiton Bridge; if Nori does not repair it, the bridge will collapse; Mojo and Bo are available to assist with the repair.

Duggee opens the clubhouse doors and embarks on new adventures with everyone's favorite "Hey Duggee" characters.

Buddy finds himself in a basketball shooting competition with his dad, Chief Madwe, so he needs to learn how to sink a basket double quick.

Farmer Yumi and Farmer Al get stuck in the Haunted Maze; it's up to the Paw Patrol to rescue the farmers and solve this mystery.

The dog is ready for his close-up; new adventures with the happy-dancing, high-flying, big-dreaming beagle who is joined by best friend Woodstock and the rest of the Peanuts gang.

Clifford and Emily Elizabeth are excited about Halloween, but they need help when Clifford realizes his costume doesn't fit.

On Halloween, Peg and Cat have fun with their friend Richard and a tiger.

The Little Helpers focus so much on doing the small jobs that the big things don't get done.

Andy and Luna enlist the help of a totem pole artist to tell their story.

When poor Inkie gets a cold, Chip and Luna put her right to bed; but their octopus friend just can't stay put.

A jealous Mayor Humdinger tries to swipe the florist's Easter decorations and winds up on a runaway wagon with Mayor Goodway; mysterious Alien Easter Eggs cause trouble in Adventure Bay.

Molang and Piu Piu take in a penguin who becomes a figure skating star.

Molly and the Guppies want to learn how to tell a story through dance.

After the squirrels learn how to make sand castles, two crabs ask if they could work together to build them a new home.

Dylan is excited to play his new game, but things take a turn when the game pieces fall into a floor vent; Carl is determined to get into the FuzzyWorld Book of Records.

Squirrel needs help to get to his acorns.

After a safety demonstration at school, Caillou goes overboard trying to accident-proof his house; Caillou is having too much fun playing Space Captain to go to sleep, so he pretends to be Dax Turbo, trying to keep his sleepy crew awake.

At the tea party, they realize everyone went to Jared's shop for ingredients, and they all used pineapples for the party food.

When Bea discovers a lost chameleon in the Treehouse, she and her friends decide they must work together to find its owner.

While trick-or-treating, Rosie and Javi try to avoid a pirate ghost who may be haunting the cul-de-sac; Rosie and Javi offer to help make Crystal's haunted house spooky.

Otis borrows Abby's bike and ends up on a wild ride when he can't make it stop.

The Little Helpers focus so much on doing the small jobs that the big things don't get done.

While playing with Tomato, Cuquín breaks the tank that supplies the house with water; Cleo has an idea for everyone to become waiters to make sure that no one goes thirsty during the hot day.

When the kids think there is a giant snake in the lake, they are determined to solve the mystery.

Leo overcomes his fear of Lizardzilla movies.

Nick cuts his finger while playing superheroes with Sally; Sally and Nick need to clean up the backyard.

Ted the bus wants to be faster, and Mojo swaps every top trying to make it happen; but it's Bo's homemade rocket that gives Ted the boost he needs all the way into space!

A velvet worm sticks Sam and Kit together; the two pals must work together to free themselves and help their new friend get back home.

Wizz is a blue monster who is stuck in a TV show that he does not want people to watch; Wizz's friends help him navigate the consequences of being the star of a show that he wants to escape from.

In the future, all the animals are shedding at once and furballs are taking over the world; the team goes back in time to discover the future's surprising new foe: Crock's heat-loving cat - Mr. FrouFrouPants.

Best buddies Luna, Chip and Inkie are always eager to lend their friends a wing, paw or tentacle because helping others is what they do best.

Secret Agent Snoopy looks for Charlie Brown; the Beagle Scouts come to Woodstock's aid; a hug from Snoopy goes into overtime.

Raja Ampat in the Indonesian archipelago is home to diverse marine life, including manta rays.

Rick struggles to find employment because of his Autism; Victor is determined to score a job, despite his lung condition.

Robert, Ludvig and Alfred Nobel grow up in the shadow of their brilliant but reckless father, bound by a pact that will define their destiny.

Fourteen years after his first visit, Louis Theroux meets some of the growing community of religious-nationalist Israelis who have settled in the occupied West Bank.