The latest national and international news, exploring the day's events from a global perspective.

Michael Portillo searches for the lost church of St Piran, explores the last working tin mine in Cornwall and harvests oysters on the Helford River. Show more

Documentary series about the intelligence of dolphins and whales. This part looks at how the sea mammals make sounds to catch food, and sing for music's own sake. Show more

Richard Miles goes back 2,000 years to explore how archaeology began by trying to prove a biblical truth, a quest that soon got archaeologists into dangerous waters. Show more

Drama series chronicling the reigns of Roman emperors. With Tiberius retired to Capri, Sejanus plans to tighten his grip on Rome and divorces his wife for Livilla. Show more

Alastair Sooke traces how the Romans during the Republic went from being art thieves and copycats to pioneering a new artistic style of warts 'n' all realism. Show more

Leslie and the parks team compete to come up with a new design for the city hall mural.

Ron's annual hunting trip is ruined when someone from the department shoots him in the head.

Swedish crime thriller series. A Unit continue to hunt for the Kentucky Killer, the infamous American serial killer who is now on the loose in Sweden. Show more

Short, quirky documentaries that recorded developments in one of 1960s Britain's most dynamic, innovative industries - the glamorous world of fashion. Show more

Richard Miles goes back 2,000 years to explore how archaeology began by trying to prove a biblical truth, a quest that soon got archaeologists into dangerous waters. Show more