Professor Jim Al-Khalili looks at how the early scientists' bid to decode the order of the elements was driven by false starts and bitter disputes. Show more

The story of how the elements were discovered and mapped begins with the alchemists who questioned that the world was made up of earth, air, fire and water. Show more

Jim Al-Khalili reveals the breakthroughs which harnessed elements' ability to release vast power, showing how scientists are trying to create new elements. Show more

Series exploring how the human body tells the story of our evolution. Dr Alice Roberts looks at how our skeleton reveals how our ancestors stood, walked and ran for survival. Show more

Series exploring how the human body charts our evolution. How our ancestors' hunt for food changed the shape of our face, the way we see and how we attract the opposite sex. Show more

Series exploring how the human body charts our evolution. How living until old age and learning from one another has shaped human brains, and why our species has survived. Show more

Dominic Littlewood looks at antisocial behaviour. Newham Council in east London crack down on landlords making a mint from poor housing. Show more

Dominic Littlewood looks at antisocial behaviour. In this episode the police in South Wales crack down on illegal off-roaders that are damaging the forestry. Show more

Dominic Littlewood looks at antisocial behaviour. Dom goes on patrol in Preston as things heat up in the city centre after a devastating night for English football. Show more

Dominic Littlewood looks at antisocial behaviour. Dom meets the farmers who step up their security to stop their farms from being targeted by would-be thieves. Show more

Dominic Littlewood looks at antisocial behaviour. Dom meets the drug-busting pooch in Hounslow who is one of the Met's secret weapons in their war against drugs. Show more

Dominic Littlewood looks at antisocial behaviour. In this episode, Dom meets Katie Perry, one of the door staff who keeps the peace at a Northampton nightclub. Show more

Dominic Littlewood looks at antisocial behaviour. In this episode, Dom meets the volunteers from the Urban Blue bus in Maidstone who help revellers who have had one too many. Show more

Dominic Littlewood looks at antisocial behaviour. In this episode Dom looks at how thieves have stolen precious plaques from a church in east Peckham. Show more

Dominic Littlewood looks at antisocial behaviour. In this episode, Dom follows Tendring Council as they help the local community keep the streets of Jaywick clean. Show more

Dominic Littlewood looks at antisocial behaviour. Dom meets the Exeter residents who have been waging a war against antisocial behaviour. Show more

Series documenting the work of the Crown Prosecution Service. The prosecutors must decide how to charge a driver after a child is killed in a collision. Show more

Veteran presenter Johnny Ball looks back over the 45 years that Horizon, and he, have been on air to find out what science has learned about how and why we grow old. Show more

Andre Geim reveals how his playful approach to research helped him uncover the properties of graphene, the world's thinnest material, and won him a Nobel Prize. Show more

Jenny Clack recounts how she overcame setbacks before she found and described a fossil which offered new evidence of how fish made the transition onto land. Show more