Daily from 7.00pm.
Programmes start at 7.00pm.
The latest news, exploring the day's events from a global perspective.
Ben Robinson uncovers the story of Cromford, a Derbyshire village at the heart of industrialist Sir Richard Arkwright's mechanised cotton mills and a textile revolution. Show more
Castles: Britain's Fortified History
Episode 2: Kingdom of Conquest
58 minutes on BBC Four HD
Available for 28 days
Sam Willis tells the story of the English ruler who left the most indelible mark on the castle, Edward I, as he turned it into an instrument of colonisation. Show more
While Hedy Lamarr was infamous for her marriages and affairs, this film rediscovers her not only as an actress, but also as the co-inventor of 1940s wireless technology. Show more
Alice Roberts looks through 45 years of Horizon archive material to see how science came to understand sex, strived to solve our problems with it and even helped us do it better. Show more
Psychotherapist and agony aunt Philippa Perry presents a documentary exploring the problem page's enduring appeal, picking her way through three centuries of advice. Show more
Babita Sharma explores the growing and shifting fortunes of the British corner shop to discover why this unsung hero has been at the centre of ordinary lives for over 70 years. Show more
We are surrounded by types, the words on signs, buses, shops and documents. Two are regarded as the faces of Britain - Johnston and Gill Sans. Their story is told by Mark Ovenden. Show more
While Hedy Lamarr was infamous for her marriages and affairs, this film rediscovers her not only as an actress, but also as the co-inventor of 1940s wireless technology. Show more
Programmes start at 7.00pm.