PBS America (Freeview) Saturday

An investigation into one of the biggest mysteries of all time - what happened to the English colonists of Roanoke Island who seemingly disappeared without a trace

Mark Horton and Scott Dawson attempt to find out the truth behind the 400-year-old mystery, what happened to the English colonists who settled on Roanoke Island?

Part one of two. The catastrophic collapse of ancient civilisations during the late Bronze Age, revealing the events that brought an end to a thriving era of human history

Part two of two. The causes of the mysterious collapse of ancient civilisations during the late Bronze Age, and what lessons can be learned from the once-thriving era

Following renowned archaeologist Ciprian Ardelean and a team of scientists as they uncover evidence that humans may have arrived in the Americas far earlier than previously thought

The story of the two million US soldiers who fought alongside French and British troops on the bloody battlefields of the First World War

A journey inside the walls of the coveted 38 forts that were at stake during the bloodiest battle of the First World War

An in-depth look at what became the bloodiest battle of the First World War with 11 months of fighting, over two million soldiers mobilised and 300,000 dead

Following renowned archaeologist Ciprian Ardelean and a team of scientists as they uncover evidence that humans may have arrived in the Americas far earlier than previously thought