This frank documentary enters the hidden world of the UK's 'sexual elite', meeting the meticulously vetted guests fulfilling their fantasies at exclusive sex parties

Sharon and Aftab, like thousands hidden across the country, are so overweight they no longer leave their homes. Can they lose weight and turn their lives around?

This powerful documentary goes inside the far-right splinter groups emerging in the UK, providing a candid insight into their members' motivation and agendas

Josie Cunningham has occupied the media spotlight by creating as much controversy as she can, posting outrageous tweets and prompting shocking stories. But at what cost?

A powerful documentary about the liberation of the Nazi concentration camps and how combat and newsreel cameramen filmed the almost unbelievable scenes they found there. When Allied forces liberated the Nazi concentration camps in 1944-45, their terrible discoveries revealed for the first time the full horror of what had happened. Making use of British, Soviet and American footage, the Ministry of Information's Sidney Bernstein aimed to create a documentary that would provide lasting, undeniable evidence of the Nazis' unspeakable crimes. He commissioned a wealth of British talent, including his friend Alfred Hitchcock. There were even secret talks with Hollywood director Billy Wilder, himself an Austrian refugee from the Nazis. But despite initial support from the British and US governments, the film was shelved. It was considered too sensitive for the rapidly changing political climate.

A powerful documentary about the liberation of the Nazi concentration camps and how combat and newsreel cameramen filmed the almost unbelievable scenes they found there. When Allied forces liberated the Nazi concentration camps in 1944-45, their terrible discoveries revealed for the first time the full horror of what had happened. Making use of British, Soviet and American footage, the Ministry of Information's Sidney Bernstein aimed to create a documentary that would provide lasting, undeniable evidence of the Nazis' unspeakable crimes. He commissioned a wealth of British talent, including his friend Alfred Hitchcock. There were even secret talks with Hollywood director Billy Wilder, himself an Austrian refugee from the Nazis. But despite initial support from the British and US governments, the film was shelved. It was considered too sensitive for the rapidly changing political climate.

A look behind the doors of the five-storey Paradise club in Stuttgart, exploring what life’s like for sex workers and their clients in a country with some of the world’s most liberal prostitution laws

Documentary meeting three of the thousands of brides who get married behind bars in the USA every year, when the happiest day of your life can involve x-ray machines and bulletproof glass.

How the Nazis used a blend of politics and biology to try to change the course of evolution with the aim of filling vast forest parks with extinct but revered game animals for a new super-race to hunt.

In America at any one time there are over 70,000 children behind bars. This extraordinary two-part documentary explores some of the highest-security juvenile prisons in the US and meets the child inmates who have committed shocking crimes. Pendleton Juvenile Correctional Facility is at the forefront of a new philosophy in juvenile justice that emphasises treatment over punishment. There are currently 150 juveniles in Pendleton serving sentences for crimes which include battery, armed robbery, arson and murder. This episode focuses on C complex: the sex offenders considered the lowest on the pecking order at Pendleton, who are nicknamed 'Chomos' by the other inmates. Garrett Clutter, who's 15, and Tavarius McNair, who's 14, are best friends and roommates at the correctional facility. They are also sex offenders, who have to complete a sex offender's programme before they are eligible to be released. Christopher Hillenberg arrives at Pendleton aged 15.

This documentary follows ten four-year-olds as they meet at nursery, exploring how children make and break friendships, share, stand up for themselves, and find their place in a new social group

Everyone knows the story of the Trojan Horse right? When Brad Pitt and his mates hid in a horse and pretended it was a gift to the people of Troy so they could launch a surprise attack on Orlando Bloom and the gang? Good, glad we are all up to date. This documentary examines new evidence which appears to prove this story of Greek mythology may actually be true. Experts reveal how discoveries of charred bones and arrowheads at the site of Troy in modern-day Turkey point towards a violent showdown in around 1200 BC, which could be the scene of the conflict which led to the legendary invasion.

Businessman Dave Fishwick helps ordinary developers whose property projects have hit trouble. Dave meets Dee Lazzerini and Steve Woodford, who have put their life savings on a place in Poole, and Sam and Elise in Winchester, who are sitting on a potential goldmine.

Candid and moving First Cut documentary following three brave, feisty and opinionated teenagers as they leave the care system behind and set out to live independently for the first time

This thought-provoking documentary gives a unique insight into the reality of multiculturalism in Britain today, capturing contemporary life on an ethnically diverse street in Southampton

At the time of his death in April 1973, aged 91, Pablo Picasso had become one of the 20th century’s most influential and prolific artists. Picasso has been painted as many men – genius, womaniser, egomaniac. His reputation is still fiercely debated. Brought up in the Spanish town of Malaga, he would represent himself as the mythological minotaur – half man, half bull. The bull craved the women who would feed his life and his art.

Philippa Perry has witnessed the dramatic rise in people being diagnosed as bipolar, and examines various explanations for the disorder, from genetics to life experiences.

Around 50% of the cocaine found in the UK originates in Peru. And it is primarily young European women who are acting as the mules. Stopping the Peruvian drug traffickers has now become a priority for the British government, as every day, huge quantities of the drug are carried across international borders. This remarkable documentary has secured unprecedented access to both smugglers and law enforcement agencies to provide a unique insight into the global war on drugs.

The show takes a look at the exclusive Burj Al Arab in Dubai which has been dubbed by some the world's most luxurious hotel. The cameras follow the stories of some extraordinary guests and the staff who serve them

In 2010 a startling number of children developed narcolepsy. This documentary meets British children who developed the incurable sleeping disorder, and explores the shocking theory of why it happened.

British teenagers are coming out younger than ever before. But in an age of internet trolls, this documentary meets five teenagers to find out what it's like to be underage and gay today.

Britain’s Racist Election reveals what happened when a small British town gained national and international notoriety following the unprecedented culture collision between immigrants and the white community at the start of the era of mass immigration. When a maverick Conservative won the West Midlands seat of Smethwick in the 1964 General Election following what is seen as the most racist campaign ever conducted, it triggered one of the worst chapters in the history of British race relations. Violence, assassination attempts, and even the creation of a British Ku Klux took a small corner of England to the brink of official racial segregation. This in-depth history film combines first-hand accounts from residents with rare archive footage and new revelations about the creation of the most infamous campaign slogan in British history, to paint a shocking picture of a bigoted Britain; and it offers a timely warning of how fears about the effects of immigration together with an election campaign can quickly and violently spin out of control. In the years before the 1964 General Election, Smethwick had seen an influx of immigrants from across the Commonwealth causing community tensions. Local head teacher Peter Griffiths stood as Conservative candidate, running on an anti-immigration platform and the tensions quickly spilled over into violence and spawned the most infamous election slogan in history: “If you want a n****r for a neighbour, vote Labour”. Griffiths overturned the Labour majority at the election, but far from dying down, the tensions continued to rise. A British Ku Klux Klan was launched in nearby Birmingham and there were further racist attacks - including burning crosses and even an assassination attempt. Smethwick gained national and international notoriety following the council sanctioned plan to let homes on one street - Marshall Street – to white families only. US activist Malcolm X turned up in the town in February 1965 – 50 ye

Reported rates of eating disorders and self-harm among young people are increasing dramatically and experts are warning this could be connected to the rapid growth in pro-anorexia and self-harm websites. Thousands of blogs and websites have emerged, made by young people and encouraging their users to compete to lose more weight, share pictures of themselves, post comments, or glorify their own self-harm. They include images of emaciated bodies alongside tips and tricks on how to make yourself vomit or hide your self-harm scars from your parents. One in 12 people self-harm, and in 2014 there were over 38,000 admissions to hospital as a result of self-harm injuries; an increase of nearly 70% in 10 years. Meanwhile, the number of young people seeking help for an eating disorder increased by 110% between 2011 and 2013. This intimate documentary meets three young women who have been drawn into this chilling online world. They share step-by-step accounts of how their illnesses developed, the painful steps to recovery, and for some, the ongoing battle with negative thoughts

Trevor Phillips confronts some uncomfortable truths about racial stereotypes, as he asks if attempts to improve equality have led to serious unwanted negative consequences

Did Richard III really kill his nephews so that he could be king? A stellar cast of experts, including David Starkey and Philippa Gregory, endeavour to finally uncover the truth.

This programme captures the climax of the procession taking Richard III’s remains to Leicester Cathedral, and asks leading historians and other experts what his place in British history should now be

This final programme in Channel 4's coverage of the reburial of Richard III provides highlights of the service from earlier today at Leicester Cathedral, alongside a live broadcast of a ceremony in which the king's descendants, and those who led the campaign to find his remains, gather to bid him a final farewell. The Bosworth beacon, lit when Richard's remains arrived back at the site of his death on Sunday morning, will be extinguished as the tombstone is revealed for the first time.

“Our companies have become chips in the stock market casino.” That’s the gist of Will Hutton’s heartfelt polemic here. He points to the once-great pillars of Britain’s industrial landscape, from ICI to Cadbury via car-makers such as MG and Land Rover, which have all been sold to overseas owners. How does this happen? Because, he argues, our “open for business” culture means we allow foreign takeovers no other country would countenance. And those who benefit from the wheeler-dealing – the bankers, lawyers and acountants of the City – have the ear of government. And the next British sector ripe for losing its identity to foreign ownership? Yes, it’s television. Will Hutton presents an impassioned argument on the British economy, claiming that business leaders and politicians are selling off some of the nation's best companies for quick and easy profits, and that this is creating a dumbed-down, low-wage Britain. He reveals that in the past 10 years, £440billion of British firms have been sold to new overseas owners, illustrating a radical view of the economy that MPs rarely talk about, ranging from the takeover of Cadbury to the foreign-owned Thames Water.

How Safe Are Our Planes? Last week an Airbus 320 heading from Barcelona to Dusseldorf crashed in the Alps with the loss of 150 lives, and after initial concerns over mechanical failure or an act of terrorism, it was eventually revealed to be an act of mass murder committed by the co-pilot. This documentary asks whether air travel is still the safest form of transport, examining the airline industry's safety record and incidents involving pilot error or emotional breakdown.

If Hollywood films are to be believed, the human race as we know it could be wiped out by threats ranging from an asteroid collision to a zombie apocalypse. End of the World Night will look at the science facts behind the science fiction. In the special programme, some of the world’s foremost academics will evaluate the many threats to our civilization, and answer the question ‘How will the world end?’. Spectacular Hollywood productions like Deep Impact and The Day After Tomorrow depict death and destruction on a global scale, but what is the scientific truth behind these dramatisations? With contributions from scientists and doomsday experts, the programme will countdown a ‘Top 10’ list of ways in which humanity could end, brought to life with analysis of some of the best-known blockbuster disaster movies. Could the end of the world as we know it arrive sooner than we think? Nicolas Kent, Creative Director of Oxford Film and Television comments: “Hollywood disaster movies aren't just popcorn entertainment. The reason they are so successful is that they express our subconscious fears. In End of the World Night, with help from some of the world's leading scientists, we identify the real threats to human survival on this planet as well as the ones we shouldn't take too seriously.” Rob Coldstream, Commissioning Editor for Specialist Factual at Channel 4, comments: “The apocalypse film is one of the most popular and prolific genres of science fiction, but the truth could be even scarier than the movies. We’ve commissioned this one-off special to examine this captivating area of science in closer detail, and, in true Channel 4 style, answer one of life’s big questions: How might our world end?”

Three young British entrepreneurs seek their fortunes in San Francisco's multi-billion-dollar technology gold rush

Filmed over one of the most unpredictable years the property market's known, this documentary reveals - from castles to council houses - what a million pounds can buy in different parts of the UK

Meet the men and women selling supercars to Britain's rich and famous, from multi-millionaire specialists taking helicopter rides to buy Ferraris, to ordinary dealerships getting in on the act.

Raj and his team turn part of London into an Ibiza-inspired rave; lead an Asian invasion into Blenheim Palace; and create a blockbuster Bollywood celebration in Leeds

An East End boozer has been rigged with cameras to see what men say when women aren't around and they're not on their best behaviour, for this fresh, funny documentary about pub culture

With 60% of British women now technically obese, this Cutting Edge documentary explores the fast-growing plus-size fashion industry and its biggest brands, and meets its witty and stylish stars

The remarkable true story, from VE Day in 1945, of when the future Queen Elizabeth and Princess Margaret slipped out of Buckingham palace to celebrate in secret with the public on London’s streets.

The inspirational true story of Jonny Benjamin's global search to find the stranger who talked him out of jumping off Waterloo Bridge in 2008

This one-off film, exclusive to More4, follows Frances Atkins, who is one of only six female Michelin-starred chefs in the UK. Frances Atkins has held her Michelin star continually since 2003 - no mean feat in the modern restaurant business. A Taste of the Yorkshire Dales follows Frances as she creates new meals at her North Yorkshire restaurant, The Yorke Arms, using local, fresh seasonal ingredients - from grouse and crab to lush autumn berries. Frances combines her knowledge of food with classic techniques and a talent for presentation, flavour and texture. The combination has earned her the reputation as one of Britain's most talented chefs. However, as well as keeping the menu fresh, there is the pressure to remain at the top. This film captures just how much that means to Frances and her close-knit team.

This eye-opening documentary reveals how smartphone apps have revolutionised dating. Smartphone dating apps have revolutionised many people's love lives. This documentary lifts the lid on an online world of deviancy, devotion, deception, heartbreak and sexual brazenness.

Inspired by his life and the people he grew up among, Grayson Perry celebrates Essex women.

No-holds-barred documentary exploring the lives of high-class prostitutes Miss Emily B and Cookie Jane, who charge thousands of pounds for a night with clients who find them on the Adultwork app.

Exclusive access to Jaguar as their craftsmen create six new Lightweight E-Types, costing over £1 million each and going to specially-chosen customers

Meet Matt, the Welsh pizza wizard, a true 'Dominoid' who hopes to win Manager of the Year at the pizza Oscars. Then there's Iraqi refugee Zagros. And Eddie, who's on to his tenth Domino's.

Documentary charting the 1990s revolution in British music, fashion, film, sport, art and media, featuring a decade-defining soundtrack, unseen archive and candid interviews.

This documentary goes behind the doors at Lego's headquarters, meeting some of the notoriously secretive superbrands's key people and revealing more about its company DNA than ever before.

This documentary film follows a group of extraordinary young people as they navigate the everyday challenges of life, love, jobs and family, but they all share one thing in common. They all have a mental health condition. From the unpredictability of bi-polar to the frightening hold of anorexia, these conditions often leave young people isolated and ostracised from their peers. In this film we explore what it’s like to be young and have a mental health condition and using a unique video chat forum, gain some insight into how the internet is helping bring people together, breaking stigmas and stereotypes surrounding mental illness. We witness this group of young people as they guide and support each other through some of the biggest challenges of their lives and as they attempt to manage their conditions in the real world.

Tom is 27. He's spent more than six years in jail. But now, with help from a specialist police team, he wants to go straight, before his 19-year-old brother Ben follows in his footsteps.

This documentary goes undercover to investigate increasing evidence that London's property boom is being partly fuelled by overseas buyers laundering money

Emily Maitlis interviews the Dalai Lama, to discuss politics, Buddhism and ageing.

This one-off documentary features exclusive access to a Missouri-based modern-day faction of the notorious Ku Klux Klan. This year marks the 150th anniversary of America's most notorious white supremacist group and this documentary follows Missouri-based chapter the Traditionalist American Knights. Filming across several states over a period of seven months, Dan Vernon meets prominent members who claim not to support violence and are keen to disassociate themselves from the Klan's brutal past, but he also travels to Texas to hear first-hand about a notorious crime committed by members of a different Klan faction

Documentary about the work of the charity Dogs Trust and dog ownership on Britain's housing estates, where for some their dogs are a welcome distraction from the daily routine of life on the dole

An extraordinarily frank look inside a rarely seen world, with unprecedented access to all areas of this unusual family business, with contributions from the working girls and their customers.

In 1845, maverick sea captain Sir John Franklin set off with 128 men on Royal Navy ships HMS Erebus and HMS Terror, to chart the elusive Northwest Passage. Venturing into uncharted Arctic waters, they were sailing off the map of the known world. Their state-of-the-art mission was equipped to survive for up to three years, but they were never heard from again. A century and a half of searching revealed only scant and tantalising clues, suggesting a descent into madness, starvation and even cannibalism. But no trace of the ships was found, until, 170 years later, a multi-million-dollar state-of-the-art expedition astonishingly found HMS Erebus, intact and upright on the Arctic sea floor. This Secret History documentary has exclusive access behind the scenes of that momentous expedition, revealing the dramatic chain of events that led to their historic discovery.

Belgian sexologist Goedele Liekens launches a new kind of sex education for 15-16 year olds at a Lancashire school

This documentary examines Peru's cocaine industry, meeting drug gang members, as well as the elite British-funded Peruvian drug force with the dangerous job of stopping them and their European mules

This documentary has unprecedented access behind the scenes of Christian Louboutin's extraordinary world as he attempts to introduce his famous footwear to new super-rich markets in Asia

Ever taken a sexy selfie? Beware; revenge porn is on the rise.

An unprecedented insight into Britain's clandestine 'Gaysian' community. This documentary meets Muslim drag queens striving to gain acceptance and tolerance within their own wider community.

This documentary meets from four women who have piled on extra pounds after walking down the aisle seeing how it has affected them and their relationships, and if they are doing anything about their bigger figures.

Leo Maguire joins migrants in Calais. He sleeps where they sleep, is with them as they try to evade security guards and police, and waits with them in trailers as they try to make it to Britain.

A unique, privileged insight into the world of high-end weddings, going behind the scenes at elite couture bridal shop Caroline Castigliano, and meeting the brides who use the shop's bespoke services

Jamie Oliver investigates sugar's huge contribution to global health problems like obesity and type 2 diabetes, reveals how much sugar is in healthy-looking food, and explores what can be done to help.

Million Pound Movers goes behind closed doors to meet the wealthy clients moving pricey and priceless objects, expensive art and furniture. Luxury removals are no easy task.

Filmed by three former soldiers, this documentary follows British men who've volunteered to fight against Isis militants in Syria, and provides a unique insight into the dangers on the frontline.

This compelling documentary joins Greater Manchester Police as they attempt to protect the victims of forced marriages and bring the perpetrators to justice

My Transgender Kid followed two seven-year-olds George and Paddy, who don’t identify as the gender they were born with.

Brides to be come in all shapes and sizes. Three women get help from a plus-size bridal boutique to have the best possible nuptials.

Exclusive access to a controversial American camp for transgender adolescents

This powerful programme documents the daily struggle Sally Evans and her youngest son Micheal have faced since Sally’s eldest son Thomas travelled to Somalia to join terrorist group al-Shabaab.

This film meets ordinary people seized with overwhelming, totally intoxicating manias such as sex, shopping, stealing & surgery. Through real life stories, it discovers the boundary between normal life & complete compulsion.

This chilling documentary brings together medieval manuscripts, new archaeological finds and a shocking interview with a vampire slayer to cast new light on medieval beliefs in vampires

Psychic mediums reveal what life is like for people who claim they can talk to the dead. From romance to business and popping down the shops, does psychic ability make life easier or more complicated?

A look into the secret, super-luxury world of the mega yacht, as 120 of the floating palaces, and some of their multi-millionaire owners, get together for the annual Monaco Yacht Show.

Dr Xand van Tulleken moves in with a family for the weekend, to give them a thorough health check and a plan to help them live well and feel better

Engineer Hugh Hunt attempts to recreate the monstrous 25-barrelled cannon that Hitler created to flatten London, and tests out the plans the Allies dreamt up to destroy his supergun.

This 12-month undercover investigation penetrates the secret world of the women in the UK who support Isis, glorify jihadis, and preach a message of hatred, segregation and extremism.

Dr Christian Jessen puts three self-confessed hypochondriacs on the front line of the NHS, from ambulance to GP to sick patients. Will the exposure cure their health anxiety?

Guy Martin and a team of engineers prepare the last airworthy Vulcan bomber for its farewell tour in a programme that also tells the definitive story of this iconic and vital plane,

All aboard! Behind the scenes of the Venice Simplon-Orient-Express train service.

Polar bears are typically intensely solitary creatures, and the stunning footage of this documentary relays a behaviour which is highly atypical. Every September, residents of Kaktovik, Alaska, hunt and harvest a bowhead whale, Dozens of polar bears turn up to gnaw on the remains after the villagers have had their fill. Since this behaviour is a relatively recent phenomenon, some experts believe climate change is to blame. The documentary takes a look at polar bearsmaking their way onto human territory.

Charlie Luxton presents the world's 20 weirdest, most fascinating and jaw-dropping homes, from a house shaped like a beagle to a home in a New York dumpster and Pierre Cardin's space-age summer house

With unprecedented access to the National Crime Agency, this gripping programme follows the hunt for an abuser who duped and blackmailed hundreds of teenage boys to share indecent images of themselves

The full story of Jonathan King is pieced together by Jon Ronson, through interviews with his friends, the police and his victims. Taking us through his life and career, Ronson tells the story of the pop impresario who, in the 1970s and '80s, preyed upon teenage boys, using his fame and his money to lure them into having sex with him. This is also the story of King's exploits at the now infamous Walton Hop disco, where he and others picked up impressionable youngsters

Investigation into how former mental patient Robert Kleasen was convicted of a double murder in 1974 that echoed the events of the horror film, only to be reprieved on a technicality after just a few years in prison. Kleasen, who has since died of suspected heart failure, was accused again when new evidence came to light 26 years later.

Guy Martin sets out to learn the truth about his Latvian grandfather and World War II. Along the way, he meets his Latvian relatives and gets some clues about the origins of his own personality.

From bespoke baubles to extravagant gifts and £615,000 diamond-encrusted tree toppers, this programme meets the people supplying and buying a top-end Christmas

'Troy: Cyber Hijack' aka: Troy:Digital Hijack With a series of large-scale stunts, unexpected pranks and surprise demonstrations, magician Troy reveals in this one-off show just what can go wrong on social media and online. From viruses to selfies to secure passwords, Troy pulls out all the stops to make over-sharers, social media addicts and careless data users realise that security really does matter - with hilarious and eye-opening results. In London's Piccadilly Circus, Troy makes some supposedly internet savvy individuals gape as he goes password busting. An innocent temp gets more than she bargained for when she unwittingly downloads a virus. Serial selfie fanatics become the face of an unappealing product. And look out jobseekers - see what happens when a potential employer trawls your social media. Finally, an over-sharer's most personal photographs and information provoke Troy's most audacious stunt of them all.

Did the paparazzi chase Diana, Princess of Wales to her death in the Pont d'Alma tunnel in Paris? This is the story of the photographers arrested that night and their version of the events.

This Cutting Edge film explores the jet-set world of the young and super rich, who share their luxury lifestyle and the lavish trappings on Instagram, from Kazakhstan to California.

Some people in the wealthiest areas of Britain are outliving those in the poorest by 18 years. Dr Christian Jessen investigates the high-end health industry that seeks to help the rich live longer.

A look at the world of extreme festive lighting across Britain The world of extreme festive lighting - from the tears and tantrums to the moving tales behind the dazzling displays

More than half of all Lego sales come in the last three months of the year. This documentary goes behind the scenes at the secretive superbrand as it prepares for Christmas

More than half of all Lego sales come in the last three months of the year. This documentary goes behind the scenes at the secretive superbrand as it prepares for Christmas.

A look at the booming business of decorative ice, from an ice palace hotel to a scuplted masterpiece worth thousands

Mary Portas offers an eye-opening look at the shopping trends of 2015, from must-haves to why-did-we-evers, from spiralizers to pastel hair dye.

A look behind the scenes at the work of party planner Liz Taylor, who organises spectacular luxury events for the super wealthy

David Walliams, Britain’s best-selling children’s author, counts down the nation’s favourite books for kids, with Miranda Hart, Rob Brydon, Julie Walters, Quentin Blake and Michael Morpurgo.