Horizon meets researchers studying psychopathic killers to try to determine what makes people good or evil. One such scientist believes he has found the 'moral molecule'. Show more

Horizon explores the latest scientific insights into the sense of taste, including the discovery of a way to make food taste sweeter without adding extra sugar. Show more

Addiction expert John Marsden, who likes a drink, makes a professional and personal exploration of our relationship with alcohol, undergoing physical and neurological examinations. Show more

Dr James Fox explores how tension between two cultures - one courtly and European, one home-grown and vital - helped bring the country to civil war. Show more

Director Trevor Nunn looks at the magical and mysterious world created in Shakespeare's The Tempest, and the strange personal insights hidden within the last play he ever wrote. Show more

David Tennant, whose own RSC performance as Hamlet was a huge hit, meets other actors who have played the role and tries to unravel the meaning of the play. Show more

In a film offering a glimpse of the human characters behind the judgments, four Justices of the Supreme Court talk about the nature of justice and how they make their decisions. Show more

Dr Michael Mosley investigates how scientists have struggled to understand that most irrational and deeply complex part of our minds - emotions. Show more

Part of The Big Stories: 2016. BBC reporter Rupert Wingfield-Hayes discusses his time in North Korea, and his detention and interrogation by senior Korean officials. Show more

BBC reporter Rupert Wingfield-Hayes discusses his time in North Korea and explores what his detention and interrogation by senior Korean officials say about this secretive state. Show more

Ethan Hawke uncovers the true story behind Macbeth, seeing some of the greatest productions and discovering the insights into the criminal mind that Shakespeare reveals. Show more