The Brain Scientists believe that challenging the body can benefit the brain. Dr Michael Mosley learns how meditation can help fight dementia and how people can sharpen their minds by being more like children. S1 E1.

Spring As spring lights up the land, Alaska faces one of the greatest transformations on earth. Temperatures soar, and as the sun's rays hit the snow and ice, water, light and warmth return. S1 E1.

Finding My Voice Ron has been admitted into Queen's Medical Centre after falling out of bed, Jake is receiving treatment after trapping his finger in a container at work. S18 E23.

Episode 24 Following patients who are treated in the same 24-hour period at St George's in south-west London, one of the UK's busiest accident and emergency departments. S18 E24.

Weather the Storm Sue secures her camp before a long trip. Ricko helps repair his uncle's cabin. Jessie competes in a sled dog race. The Hailstones prepare for an intense storm. S7 E4.

Forests Sir David Attenborough journeys into the forests, where dogs communicate with whistles, treehoppers fight assassin bugs, 'spirit bears' fish, and hornbills imprison themselves in trees. S3 E5.

The Ultra Zionists Louis Theroux spends time with ultra-nationalist Jewish settlers, who consider it their religious and political obligation to populate some of the sensitive areas of the West Bank. S1 E1.

Louis Theroux reveals the inside story of life in one of America's largest legal brothels. Louis meets the owners, clients and working girls who inhabit the Wild Horse Ranch in Reno, America's largest legal brothel. S1 E1.

Episode 1 Steve Backshall begins his up close and personal exploration into the world of the red fox, a true survivor and master of adaptation. S1 E1.

Episode 2 Steve takes another look at fox behaviour, watching the seven cubs that cameras have been following since they were days old establish their hierachy. S1 E2.

Episode 1 As Lucy and her Indigenous team begin their unique 50-day journey into virgin Amazon rainforest, they can hear the whistling of the deadly bushmaster snake... S1 E1.

Episode 2 Lucy plunges further into the unknown reaches of the Amazon, coming face to face with hostile giant wasps, caiman-infested rivers, and more deadly snakes. S1 E2.

Episode 1 This film tells the epic survival stories of the world's smallest animals. It really is a big bad world out there. So what happens if you are the little guy? S1 E1.

Episode 2 Alan is at Putney Animal s hospital meeting the patients and holding the paw of Yorkshire Terrier as she goes under major corrective surgery. S7 E2.

Episode 3 Alan returns to one of the Uk's busiest animal hospitals in his new role as vet assistant. S7 E3.

Weather the Storm Sue secures her camp before a long trip. Ricko helps repair his uncle's cabin. Jessie competes in a sled dog race. The Hailstones prepare for an intense storm. S7 E4.

Chimpanzee In Senegal, West Africa, live a group of chimpanzees, led by an alpha male named David. He has already been alpha for 3 years - a time when leaders here are usually overthrown. S1 E1.

Forests Sir David Attenborough journeys into the forests, where dogs communicate with whistles, treehoppers fight assassin bugs, 'spirit bears' fish, and hornbills imprison themselves in trees. S3 E5.

Episode 5 A behind-the-scenes look at the final chapter of the Planet Earth trilogy, which explores the greatest habitats on our amazing planet. S1 E5.

Mating Game How animals fight, steal and trick their way ahead in the struggle to pass on their genes. S1 E1.

Episode 3 New Zealand was one of the last land-masses to be found and settled by people. Lush and fertile, almost everything brought here flourishes, often with surprising consequences. S1 E3.

Weather the Storm Sue secures her camp before a long trip. Ricko helps repair his uncle's cabin. Jessie competes in a sled dog race. The Hailstones prepare for an intense storm. S7 E4.

New Zealand Ben joins fellow Brit Lucy, husband Tim and their two daughters, a family who swapped their London home for a yurt on a woodland river on New Zealand's North Island. S7 E10.

Croatia Ben meets an ex-national athletics coach who now lives a hermit life without basics in a remote forest in Croatia. S7 E11.

Oregon In the last of the series, Ben meets a photographer living out his childhood dream. Dan Price gave up his job as a photographer to live the remotest of lifestyles in a meadow in Oregon, USA. S7 E12.

Pembrokeshire Ben meets a Pembrokeshire family living on the side of a rugged mountain, where they catch and forage for their own food and salvage junk for homemade inventions. S8 E1.

Iceland Ben Fogle meets Denni Karlsson, a former film-maker who has made a home in the highlands of eastern Iceland, and set up a wilderness centre exploring 200 years of local history. S8 E2.

Episode 2 Alan is at Putney Animal s hospital meeting the patients and holding the paw of Yorkshire Terrier as she goes under major corrective surgery. S7 E2.

Episode 3 Alan returns to one of the Uk's busiest animal hospitals in his new role as vet assistant. S7 E3.

Episode 25 Following patients who are treated in the same 24-hour period at St George's in south-west London, one of the UK's busiest accident and emergency departments. S18 E25.

I've Got You Babe Following patients who are treated in the same 24-hour period at St George's in south-west London, one of the UK's busiest accident and emergency departments. S17 E1.

Hard Knocks Sue repairs her cabin in Chena. The DeWildes set a net. Jessie spends time with his young dogs. Chip receives medical attention after an accident. S7 E5.

First Steps Each and every animal is born with a chance to survive, thrive and produce their very own next generation. The first hurdle in life is infancy. S1 E1.

Growing Up On reaching adulthood animals strike out on their own to find their place in the world. S1 E2.

Home To survive, animals need somewhere to live. But finding and defending a home comes first. S1 E3.

Power To gain power an animal must find a way to rise through the ranks of its society. S1 E4.

Courtship It's time to win a mate and the stakes could not be higher. S1 E5.

The Ultra Zionists Louis Theroux spends time with ultra-nationalist Jewish settlers, who consider it their religious and political obligation to populate some of the sensitive areas of the West Bank. S1 E1.

Louis Theroux reveals the inside story of life in one of America's largest legal brothels. Louis meets the owners, clients and working girls who inhabit the Wild Horse Ranch in Reno, America's largest legal brothel. S1 E1.

Episode 25 Following patients who are treated in the same 24-hour period at St George's in south-west London, one of the UK's busiest accident and emergency departments. S18 E25.

I've Got You Babe Following patients who are treated in the same 24-hour period at St George's in south-west London, one of the UK's busiest accident and emergency departments. S17 E1.

Episode 1 More dramatic than any work of fiction, the world of growing families, power struggles and feuding rivals, is back. Watch as as animals strive to create dynasties fit to rule for generations. S1 E1.

Hard Knocks Sue repairs her cabin in Chena. The DeWildes set a net. Jessie spends time with his young dogs. Chip receives medical attention after an accident. S7 E5.

Mississippi The Mississippi, from frozen waterfalls to time travelling barges, from busy beavers to mysterious swamps, the Mississippi connects a continent like no other river on Earth. S1 E3.

Courtship It's time to win a mate and the stakes could not be higher. S1 E5.

Curious Feeders A look at the curious feeders of the animal kingdom, including blue whales and flamingos. S3 E4.

Iceland Ben Fogle meets Denni Karlsson, a former film-maker who has made a home in the highlands of eastern Iceland, and set up a wilderness centre exploring 200 years of local history. S8 E2.

A former commando spends ten days locked in a nuclear bunker, with no way of telling the time, to find out how best to manage our body clock and improve our health.

Everybody Needs Somebody 56 year old Wendy is rushed to St George's with an open ankle fracture and paramedics rush Fred to Resus after experiencing chest pain at home. S17 E2.

The Sea of Cortez The team discovers how a unique ocean paradise off the coast of California, home to the greatest variety of whales and dolphins in the world, is under threat. S1 E1.

Hard Knocks Sue repairs her cabin in Chena. The DeWildes set a net. Jessie spends time with his young dogs. Chip receives medical attention after an accident. S7 E5.

Spring As spring lights up the land, Alaska faces one of the greatest transformations on earth. Temperatures soar, and as the sun's rays hit the snow and ice, water, light and warmth return. S1 E1.

Episode 3 New Zealand was one of the last land-masses to be found and settled by people. Lush and fertile, almost everything brought here flourishes, often with surprising consequences. S1 E3.

Zambezi Follow the journey of the mighty Zambezi - Africa's wildest river. It floods across endless plains, fuelling the migration of 30,000 wildebeest, turning villages into islands accessible only by boat. S2 E1.

Parenthood Offspring are the next best thing to immortality. Parents take great risks to raise them. S1 E6.

Nothern Ireland Ben ventures off the wild coast of Northern Ireland to the remote and rugged island of Rathlin. He stays with 41-year-old Rauri Morgan, a former HR executive who turned his back on corporate life. S8 E3.

Explore From gravity-defying giraffes, to radiation-resistant fungus, Patrick Aryree investigates how life evolved ways to thrive in all corners of the planet. S1 E1.

Into The Light Ashanti is rushed to St. Georges after being struck by a car, Julie is transferred to resus after falling down the stairs and Reiss has come to A&E with an Achilles injury. S17 E3.

Best Laid Plans Sue continues to restore her cabin. Ricko travels with his son to the family cabin. Jessie gathers firewood. The Hailstones go muskox hunting. S7 E6.

Oceans Out Of The Blue The Ocean is where life first experimented with the Mating Game, and over time this has led to some of the most ingenious mating strategies of all! S1 E2.

Emperor Emperor penguins battle for survival against the worst winter in the world. Working together can they protect and feed their chicks till they reach adulthood? S1 E2.

Zambezi Follow the journey of the mighty Zambezi - Africa's wildest river. It floods across endless plains, fuelling the migration of 30,000 wildebeest, turning villages into islands accessible only by boat. S2 E1.

Parenthood Offspring are the next best thing to immortality. Parents take great risks to raise them. S1 E6.

Nothern Ireland Ben ventures off the wild coast of Northern Ireland to the remote and rugged island of Rathlin. He stays with 41-year-old Rauri Morgan, a former HR executive who turned his back on corporate life. S8 E3.

Explore From gravity-defying giraffes, to radiation-resistant fungus, Patrick Aryree investigates how life evolved ways to thrive in all corners of the planet. S1 E1.

The Sea of Cortez The team discovers how a unique ocean paradise off the coast of California, home to the greatest variety of whales and dolphins in the world, is under threat. S1 E1.

Oceans Out Of The Blue The Ocean is where life first experimented with the Mating Game, and over time this has led to some of the most ingenious mating strategies of all! S1 E2.

Emperor Emperor penguins battle for survival against the worst winter in the world. Working together can they protect and feed their chicks till they reach adulthood? S1 E2.

Curious Feeders A look at the curious feeders of the animal kingdom, including blue whales and flamingos. S3 E4.

Best Laid Plans Sue continues to restore her cabin. Ricko travels with his son to the family cabin. Jessie gathers firewood. The Hailstones go muskox hunting. S7 E6.

Zambezi Follow the journey of the mighty Zambezi - Africa's wildest river. It floods across endless plains, fuelling the migration of 30,000 wildebeest, turning villages into islands accessible only by boat. S2 E1.

Parenthood Offspring are the next best thing to immortality. Parents take great risks to raise them. S1 E6.

Curious Cures This episode focuses on animals who protect themselves with natural remedies in the same way that humans use medicine. S3 E5.

Nothern Ireland Ben ventures off the wild coast of Northern Ireland to the remote and rugged island of Rathlin. He stays with 41-year-old Rauri Morgan, a former HR executive who turned his back on corporate life. S8 E3.

Explore From gravity-defying giraffes, to radiation-resistant fungus, Patrick Aryree investigates how life evolved ways to thrive in all corners of the planet. S1 E1.

Into The Light Ashanti is rushed to St. Georges after being struck by a car, Julie is transferred to resus after falling down the stairs and Reiss has come to A&E with an Achilles injury. S17 E3.

The Southern Ocean The team see how parts of the Southern Ocean are warming twice as fast as the world's other oceans and look at its impact. S1 E2.

Best Laid Plans Sue continues to restore her cabin. Ricko travels with his son to the family cabin. Jessie gathers firewood. The Hailstones go muskox hunting. S7 E6.