Osteoarthritis - New hope for the knee

How do we break free from a spiral of hate? This documentary follows people in Bosnia, Mexico, and Canada who have found ways to deal with hate—and to overcome it. As the host of a children’s show, Tobi Krell is surrounded by closeness and trust. At the same time, he observes a growing coarsening of society worldwide: People treat one another with aggression, violence, and hostile stereotypes. He sets out to look for approaches to breaking the cycle of hate. In Sarajevo, he meets Adnan, a war veteran. Three decades after the end of the Bosnian War, tensions remain palpable. Adnan grapples with the question of how to dispel stereotypes—and what it takes to counter them in everyday life. In Canada, Tobi Krell meets Lauren and her mother. As a teenager, Lauren joined a far-right group. The two explain how they were able to stay in touch despite this experience—and what role personal bonds play in leaving such groups. In Monterrey, in northeastern Mexico, Anni shares her experiences with domestic violence. She shows how she has learned to reflect on

Victorian London is drowning in sewage, while contaminated drinking water helps deadly cholera tear through the population. From John Snow's groundbreaking discovery to Joseph Bazalgette's colossal sewer network, ingenious engineers battle to clean up the capital — but one horrific disaster on the Thames will still claim around 640 lives.

Why do people in Europe refer to them as "Arabic numerals" when they were invented in India? How could ten tiny symbols conquer the world? And how did zero change the course of history? The Western world calls them "Arabic numerals," while in the Arab world, today's European notation is thought of as being Western. What is "Arabic" about the symbols that traveled from India to Europe and on to the rest of the world? Following the trail of our numbers leads us to Baghdad. There, in the eighth century, a scholar named al-Khwarizmi — Latinized as "Algorismi," later to be found in the word "algorithm" — helped spread Indian numerals. He would become known as the father of modern algebra. The "Arabic" numerals commonly used in Europe today derive from another variant, known as "Ghubar" — Arabic for "dust." That had emerged from the so-called "dust tables" used by Maghrebi merchants around the Mediterranean. From Europe to America, and from the dawn of modern science to the computer age — the fascinating history of these ten small digits is

From a flamboyant highwayman dancing his way to the gallows and a sailor kidnapped into Captain Cook's crew to an agonising amputation without anaesthetic, Georgian Britain was a brutal place for ordinary people. The episode reveals how poachers, gin sellers, sailors and criminals fought to survive in a society where poverty could easily become a death sentence.

A cinematic journey through the first year of Donald Trump's second term as president. Fear, hope, protest, loyalty and disappointment all shape this portrait of the US as a nation in turmoil. Washington, D.C., and Piedmont, West Virginia. As President Trump's second term sparks fear and alarm in the liberal capital, coal country in Appalachia clings to the hope of a long-awaited economic turnaround. Only a two-and-a-half-hour drive separates Washington, D.C., from Piedmont, West Virginia — yet the two places exist in hugely different cultural worlds. In liberal D.C., shock about Donald Trump's return for a second term runs deep. Many federal workers fear for their jobs, rights and democracy. In coal country, by contrast, Trump is seen as the last hope for an economic revival. Coal trains may still rumble through town, but factories stand empty and drug problems are tearing through the community. Even so, there's tremendous resilience to be found here. This documentary follows both places over the course of a year, exploring how people with sharply contrasting realities see Trump's return to the presidency. In Washington

Nimeksha Siddi is 18 years old and India's sprinting hope for the 2028 Olympics. Nimeksha belongs to the Siddi ethnic group, whose daily lives are marked by racism and exclusion. The 18-year-old sprinter Nimeksha flies down the home straight like a bolt of lightning. She's a Siddi. Hardly anyone knows about her people, not even in India, where the Siddi have lived for 500 years. Her ancestors came to India from Africa as slaves or mercenaries. It's not known how many Siddi live in India. They all have the surname Siddi. They are Muslim, Christian or Hindu - and are often mistaken for tourists by many Indians. Most live in poverty, scraping by as day laborers, gathering plants, honey or rubber. In 1983, India's Minister for Sport launched a program aimed at tapping into the community's athletic potential. Children from Siddi villages were recruited and coached in running. One of the most successful was Kamala Siddi. At the age of 15, she set a national record in the pentathlon, won bronze and gold at international level, and was rewarded with