Series looking inside the world of private medicine. This episode features a range of patients, some very wealthy but others whose care is paid for by charity. Show more

Alex Riley, the BBC's connoisseur of rubbish food, is back on the search for more disgusting fare, and sets out to unearth the horrors that could be in his meaty snacks.

Alex Riley is on the hunt for the most disgusting dairy product. He discovers cheap nasty dairy substitutes and that even milk, the purest dairy product, has its unpalatable side. Show more

Investigation series. Alex Riley sets out to find the ultimate nasty fish dish and, amid the cheap, codless fish fingers and fake prawns, unearths a fishy world of waste.

Series about the electricity grid continues by exploring how switching on has transformed our lives over the last 60 years, from gadgets to creating a consumer society. Show more

Crowned in front of TV audiences of 20 million, Britain's beauty queens of the 1970s and early 80s dated royalty and rock stars. This film looks at what has happened to them since. Show more

Chris Beardshaw uncovers the British contribution to the history of our most iconic fruit and sees how 20th-century British scientists helped create the modern mass-market apple. Show more

Documentary in which Otto Baxter, who has Down's Syndrome, charts his coming-of-age year and his search for love and adventure in a society which treats him like a child. Show more

Documentary in which Rebecca Wilcox investigates carbon dioxide emissions, finding out if the energy and aviation companies are as green as they seem or just full of hot air. Show more

Series following the rise of our airports. The jet age sees Heathrow itself become a tourist attraction, and life as an air hostess is as glamorous as can be. Show more

Using rare archive, this series charting the development of Britain's airports begins with the heady glamour of Britain's first terminal at Croydon. Show more

Series exploring the development of Britain's airports. From Nimbys to climate protesters, hijackers to terrorists: how the airport has come under attack. Show more

Documentary series celebrating Britain's motorways. This edition explores how they have transformed where Brits live, work and play over the last 50 years. Show more

Documentary series about Britain's motorways. This final episode explores how people questioned the promises made by the motorways and began to protest. Show more

Joe Swash searches for proof that ghosts exist. On the journey, he meets Britain's youngest professional psychic and sleeps in a haunted bedroom to lure an amorous spirit. Show more

Alex Riley dips a toe into the murky waters of the drinks industry. He makes cheap plonk and dresses it up as fine wine, and tries some cheap superstrength lager. Show more

Series about the electricity grid begins by looking at the first grid in the 1920s and 30s and the challenge of ensuring power at the flick of a switch today. Show more

Historian and vampire fan Lisa Hilton uncovers why we have been obsessed with vampires for centuries and charts their transformation from bloodsucking monsters to romantic leads. Show more

Actor Danny Dyer goes on a quest to spot a UFO. He examines reported UFO landing sites and sinister evidence that aliens may have conducted scientific experiments in Britain. Show more

Series telling the story of capital punishment through the eyes of young people whose lives have been shaped by it looks at two of the youngest men on death row in Texas. Show more