BBC Four HD Wednesday

Ben Robinson reveals the often surprising stories of coastal villages and their communities, beginning his journey in the Fife village of Culross

Julia Bradbury climbs Castle Crag in Borrowdale Valley, Cumbria, hoping to discover why it was the only fell of less than 1,000ft to be included in Alfred Wainwright's guides

Alastair Sooke charts the decline and fall of the Roman Empire through some of its hidden and most magical artistic treasures

Scholar Mary Beard explores the physical world of the Roman Empire, discovering a globalised economy of such scale that evidence of its side-effects can still be seen today

Piso and his wife are charged with Germanicus's murder. As the trial proceeds, the couple decide the only way out is a joint suicide. Derek Jacobi and John Hurt star

Lollia is unable to live with the memory of being abused by Tiberius and commits suicide. Livilla looks for a way to be free of Castor so she and Sejanus can be together

Alastair Sooke charts the decline and fall of the Roman Empire through some of its hidden and most magical artistic treasures

Documentary following life in a greater horseshoe bat roost for four months, with night-vision cameras and ultrasonic detectors capturing the hidden world of the colony

Julia Bradbury climbs Castle Crag in Borrowdale Valley, Cumbria, hoping to discover why it was the only fell of less than 1,000ft to be included in Alfred Wainwright's guides

Ben Robinson reveals the often surprising stories of coastal villages and their communities, beginning his journey in the Fife village of Culross

Scholar Mary Beard explores the physical world of the Roman Empire, discovering a globalised economy of such scale that evidence of its side-effects can still be seen today