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Russia and Germany clash in the Battle of Tannenberg in August 1914; France defeats the German army in the Battle of the Marne; colonial troops join the global conflict.

Explore Toronto-based artist and scientist Radha Chaddah's practice where she pushes creative boundaries, transforming microscopic imagery into captivating prints.

Marine biologist Dr. Diva Amon explores the hidden forces in ice that can restore ecosystems.

North America's first oil boom happened not in Texas, or Alberta, or Alaska, but in southwestern Ontario. Discover the story behind Petrolia, Ont., in this animated short video.

The first mammal of the year is born.

Depicting a league that empowers women through sports in a community where women traditionally don't participate, and are seen as disempowered outside their communities; on the first all-female Muslim softball league in North America.

What's driving doctors out of Ontario's health-care system? ER physicians who have stayed in the field and those who have left discuss burnout and mounting pressures. Then, Family Rooms authors Wilson and Jenson take us to the front lines of family medicine as Ontario faces a projected shortage of 20,000 family doctors by 2031.

What do bugs, Queens and aunties have in common? They all rule in Victoria, British Columbia, where host Christa Couture travels to answer the question: what makes a matriarch?

Each Saturday night during the summer, residents in Kincardine gather downtown for a parade, led by the town's Scottish pipe band.

Crystal learns that it's possible to have too much of a good thing; Melody learns not to make assumptions when her crown goes missing.

Lili jumps at a chance to plan Ivan's wedding celebration, but is forced to change course when she realizes he doesn't want to be the center of attention.

Audrey and Tommy decide to do a presentation on Obi, the tree kangaroo, but Maeva thinks her cat, Princess, is the better choice.

The piglet wants to clean its home, but everything seems to be going wrong.

The campers draw their worries and put them in a worry box; Odo is sure that if he can just get rid of the box, no one will ever have any worries.

When a rainbow appears, Tall decides to paint it! But the rainbow disappears, so Tiny tries to help Tall find another one; he wants to get the colour pattern just perfect for his painting!

Golda Meir shows Yadina that she should tell people when there's a big problem, so it can be solved together.

The burger that Ava bought doesn't look like the picture in the ad; advertisers use all kinds of tricks to make food look amazing and sometimes the food in ads isn't even edible; Ava reveals some of the food styling secrets.

Kids play Traffic Lights; Bella's rules make it too hard, so friends quit; Polly finds a way to make the game enjoyable again, bringing everyone back to play.

The top five sources of potassium.

Julius and Julia get into a sticky situation when the paper bag puppets they created for a puppet show become stuck on the antlers of a deer.

Fire Prevention Week is in October.

During the town of Trifle's 100-year anniversary party, Ozzie and Onom must stop Tracey Trifler from covering it in trifle; Osric and Omni try to stop a Roman gladiator from causing ancient oddness.

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

Kenny G sings about the two sounds the letter I makes: 'EYE' as in Ireland, island and nice, and 'IH' as in itchy and igloo.

The adventures of friends who can always count on each other.

It's the one night of the year when Vegesaur Valley's Spooky Forest comes alive with nature's treats!

Ella has her best idea yet for a fun day, visiting a nebula for each family member; when Dad's truck breaks down, they head to the Boomerang Nebula.

The Game Catchers arrive on a planet populated by trumpet-nosed aliens.

Messy goes to Okido and helps his friends mend Loopy Bridge, but Zim finds himself in a sticky situation along the way.

The parrot is getting on all the other animals' nerves because he won't stop screeching.

Encased in a huge chocolate bunny, Humdinger is carried away by hungry raccoons; when a magic trick goes awry, the Adventure Bay Easter Festival is overrun by wild bunnies.

Gabrielle spins Lexi the Letter Machine to find out what moves we're trying today!

Rosie helps Iggy get ready for his checkup; Rosie wants to play in the new park -- but it is a park for dogs.

Donkey makes Grampy a special card, but she gets into a few sticky situations when she tries to deliver it to him; the pals help Harriett with her new invention for penguins.

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

BooSnoo creates a sandcastle at the beach; he searches for hidden treasures and explores sand art.

Momolu, a gentle panda, helps his friends with their problems.

One day the kittens and their parents are rushing home from a ski vacation just in time for the New Year; the kittens learn that they can always turn a bad situation good with the help of their loved ones.

Gabby visits the horse stables for her riding lesson; she counts eight horses and ponies before doing eight jumps in the horse rink.

While playing the game shadow stompers, Posy tells a fib that she has successfully jumped on Pip's shadow; when Pip finds out she lied, Posy has to come clean and apologize for cheating.

Bamboo Love learns how piano keys can make different sounds and, when played together, create musical melodies that evoke feelings from the heart and put smiles on faces.

Mia and her bro-bot Codie turn the ordinary into the extraordinary as Mia grows as a coder, thinker, big sister and learns more about coding her world.

A bottle in Ten's collection accidentally falls off the wall.

Lady Grey releases a new song that describes her wolf pack, a group of animals that does everything together.

The number one is missing from the Number Wall; Polkaroo heads out into the real world while Hudson hangs out at the Polkaroo Counting Lab, both of them counting and finding different iterations of the number one.

The Game Catchers land on the Salad Planet and learn the game Hurdles Relay; the Game Catchers land on a new planet and learn the game You Fall, You Lose.

The Canada Crew learn all about the Royal Canadian Mounted Police with the help of Constable Amber, her horse Comet and the RCMP's musical ride.

There's a new puppy in town, and Felix is determined to introduce himself!; Dr. Cheddar reminds him that not all pets want to be petted, and it's always a good idea to first ask the owners of the pet if it's okay to come close and say, hello!

Harry is excited when he finds a new pair of glasses, but learns the value of honesty when he discovers they belong to Mr. Radish.

Gabby explores a farm find their sunflowers; she counts the tall plants and tries some sunflower seeds.

B.O.T. chases after the Snowy Scoot as it skis through the snowy landscape; the Snowy Scoot makes it look easy, but it is a struggle for B.O.T. to keep up on the slippery surface.

The top four moves in Tai Chi are the Opening, the Single Whip, the Brush Knee and the Grasping Sparrow's tail.

A medical skeleton named Bones answers body-related questions that are sent in by real-life children, while a squad of kid reporters known as the B Team find out more about the topic.

The future is really hot; everybody's too cranky to appreciate Zeph's humor; the team goes back in time to discover a surprising source of the laughter-killing-heat.

Ava explores how math is used on the field, in the pool and more.

Rubble leads the pups in building an emergency landing pad for Captain Gordy; Mayor Goodway, Danny and the Turbots are stuck in a canyon in the mountains.

Will it float or will it sink?

The Word Detectives look for the word INQUIRE, which has been snatched from the newsroom's investigation board, without asking any questions.

The panda wants to be able to dance as well as the two rabbits.

After taking a tumble off his bike, Caillou is suddenly scared to ride.

Jerome, a 9-year-old Cree boy from Timmins, Ontario, comes from a hunting family and shows his grandpa's hunting lodge.

Learning the right throwing technique for the paper plane that will take off and spin all around the room.

Princess Flug thinks Melvin's surprise party is for her, and she gets very upset when she realizes it's not.

JoJo and Gran Gran enjoy finding Gran Gran's old clothes. When Charlene brings a sewing machine, Gran Gran decides to make JoJo some new clothes.

The parrot is getting on all the other animals' nerves because he won't stop screeching.

Ginger and the baby Pea-Rexes seek shelter in a cave during a wild snowstorm, but it looks like other Vegesaurs had the same idea.

Jasmine tries to teach Dudua and Dubidu to play the drums, but they don't pick it up; Jambo shows them a map of the forest and tells them that, if they follow the instructions, they will find the rhythm.

Ladybird and Bee bounce on the mushroom tops to make a song.

Inquisitive and eager extraterrestrials discover all they can about Earth.

A monster tale of a colossal creature who really, really likes bigger numbers.

Blue is sleeping on one of the carrots that were meant for the toy animals at the farm; Yellow and Orange have to try and retrieve it without waking Blue up.

The Game Catchers land on the Porcelain Planet and learn the game Long Jump; the Game Catchers reach the Jelly Planet and learn the game Pillow Riding.

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

A song about the word embarrassing.

Nooni wants to practice her football passing skills; since all her friends are busy, Momolu comes up with a surprising solution.

The adventures of a baby monkey and his mum as they face the challenges of daily life together.

The cat has an especially delicious recipe: mouse soup.

Howie and Baboo visit a simulation space station at the Ontario Science Centre, where astronaut Chris Hadfield uses a moon model and a light to demonstrate why the moon only looks like it changes shape.

Panda throws a party on Planet Purple to celebrate his mama's birthday.

Riley is excited to help Jon write a song for a gig - his first gig in years. But the approaches that Riley and her Dad have to songwriting are very different, and cause tension. Meanwhile, Metal Mike gets a bad review and decides to up his performance game, with ridiculous demands that make the drones cause trouble in town. Things escalate when Metal Mike crashes the party and Rocket goes head to

Mr. Park has a Chickaletta topiary, but when Digi and Tal try to help, things get worse; Humdinger creates havoc with a moose and geyser as he tours Yellowbone Park in his rolling Hum-Ball.

Let's get up and move our bodies!

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.

12-year-old Quixton loves making people laugh. His dream is to be a comedian. With the help of Tai and our guest comedian Desiree Walsh he learns to find the funny in everyday life and gets to live his dream by performing on a stage in front of an audience.

Akeylah sparks up an enlightening exchange with Steph, a construction and maintenance electrician, who tends to heavy-duty electrical systems. Steph shows Akeylah how to bend EMT (electrical metallic tubing) conduit using a hand bender and motorized clock bender. Akeylah reaches new heights when she takes a ride on a scissor lift before helping Steph install wiring to an electrical panel.

When Dana visits for the weekend, Dex convinces her and her friend Riley to play her old DIY board game.

Agent Olympia is miffed when another agent with the same name shows up at headquarters; Ms. O tells a story about a famous villain duo.

Odd Squad agents share their observations of unusual things around the team's headquarters.

Twin sisters, Kara and Zara, from Halifax, Nova Scotia, bring a unique blend of Nigerian and Canadian heritage; they talk about their love for animals and learning more about the rich Black History of Nova Scotia.

Bullying in real life or online is always wrong, and if it happens to anyone or their friend, it's important for them to speak up and tell someone they trust about it; that's how they can help end cyberbullying once and for all.

Eric discovers how microbes travel from one object to another.

The gang sees the rare Spirit Bear of the Northern Pacific while looking for black bears.

When 9-year-old Arthur-crown and all-calls on the Green Squad for help with his mountain of old and broken plastic toys, they spring into eco-action! Together, they launch King Arthur's Royal Toy Drive, sorting treasures to donate and gathering broken bits for a super cool art project. From creating an ocean-themed mural to learning how toy libraries and recycling can protect animals and the plane

Jasmine and Jambo catch a bottle with a musical score inside that is difficult to play; both of them try playing it without much success; they create a symphony of grumbles and protests, which ends up fascinating the audience.

Mikaela tries her hand at being a veterinarian; Mikaela visits YouTube headquarters where she learns how to help YouTubers make better videos.

A feature on Simon, a 9-year-old Inuk boy, who loves painting and photography.

3-year-old Ellie does things her own way; then, brothers Harrison and Carter must work as a team at the local car wash.

Can retirees become too dependent on their smartphones? We look at the link between smartphone use and depression among older adults, and whether more awareness of cellphone addiction is needed.

From 1974 to 2013, TVO's Saturday Night at the Movies, hosted for many years by the beloved Elwy Yost, welcomed viewers into the magical world of cinema, from the silent era and Hollywood's golden age to today's brightest stars; delving into this treasure trove of often never-before-seen interviews with some of the biggest names, both in front of and behind the camera; revealing their role in shap

In Cardiff, a fake restoration reveals a Madonna; Emma Dabiri explores the story of the two Welsh sisters who donated the work, while Bendor Grosvenor looks for proof of a link with Botticelli.

J.R.R. Tolkien fights at the Battle of the Somme; the scale and destruction of the battles witnessed by Tolkien characterize the world of all of his work.

Shamso Mohamoud and Shamso Elmi lost their sons to violence and watched their alleged killers walk free; the two Somali-Canadian mothers organized a group to collectively combat gun violence and hardship while facing cultural and racial barriers.

Can retirees become too dependent on their smartphones? We look at the link between smartphone use and depression among older adults, and whether more awareness of cellphone addiction is needed.

From 1974 to 2013, TVO's Saturday Night at the Movies, hosted for many years by the beloved Elwy Yost, welcomed viewers into the magical world of cinema, from the silent era and Hollywood's golden age to today's brightest stars; delving into this treasure trove of often never-before-seen interviews with some of the biggest names, both in front of and behind the camera; revealing their role in shap

In Cardiff, a fake restoration reveals a Madonna; Emma Dabiri explores the story of the two Welsh sisters who donated the work, while Bendor Grosvenor looks for proof of a link with Botticelli.