The Truth About Calories

From pirates' hoards and shipwrecked booty to dazzling gems to precious metals, Ellie Harrison and Dallas Campbell journey to the far corners of the globe in search of some of the most extraordinary and elusive gems and precious metals.

Right now you're hurtling around the sun at 64,000 miles an hour (100,000 kms an hour). In the next year you'll travel 584 million miles, to end up back where you started. Presenters Kate Humble and Dr Helen Czerski follow the Earth's voyage around the sun for one complete orbit, to witness the astonishing consequences this journey has for us all.

Neil Oliver tells the epic story of how Britain and its people came to be over thousands of years of ancient history—the beginnings of our world forged in ice, stone, and bronze

Medievalist Dr Stephen Baxter takes a fresh look at the Middle Ages through the eyes of children. At a time when half the population was under 18 he argues that, although they had to grow up quickly and take on adult responsibility early, the experience of childhood could also be richly rewarding.