The human eye is a remarkable piece of precision engineering, but all around us is an astonishing and beautiful world we cannot see. This series uses cutting-edge camera technology to reveal the full glory of these secret forces and hidden powers that impact on our everyday life.

Combining bold ideas with lucid scientific insights and stunning footage, Richard Hammond’s Invisible Worlds is packed with surprising facts as well as phenomena never seen before on TV, including deadly discharge leaking from high-voltage power lines, the hidden patterns and colours of a flower garden and a black hole at the centre of our universe.

Visible from space, Africa’s Great Rift runs for thousands of miles, from the Red Sea to the mouth of the Zambezi, and is a diverse landscape of erupting volcanoes, forest-clad mountains, spectacular valleys, rich grasslands, vast lakes and mighty rivers.

Home to the greatest concentration of animals on Earth, including lions, crocodiles, elephants, hippos, flocks of flamingos and pastoralists such as the Maasai – this is a land in constant geological turmoil, and deserving of a documentary series of its very own.

This revealing series follows the different stages of a tiger’s life, from playful cub to learning adolescent and hunting adult. And ingeniously, elephants become unlikely camera assistants, carrying cameras on their tusks and trunks and following the tigers wherever they go, even on the move.

Along the way, the camera-carrying elephants uncover a wildlife world every bit as rich as that of Africa, encountering sloth bears – a rarely filmed bear famous for carrying its comical babies on its back – and leopards, the tiger’s major competitor.

Tiger – Spy in the Jungle is a story filled with drama and humour, and the most intimate portrayal of tigers ever captured.

A hip, erotic thriller that begins between the sheets as 30-somethings Lelia and Richard conceive a child before going to a Christmas party. Though Richard, a newspaper editor, and Lelia, an academic, struggle with their careers and the question of marriage, they are content in their relationship.

Enter mousy Sylvie, a mysterious friend of a friend who soon seems to have them both under her spell. And as Lelia's pregnancy advances, the couple become bound up in a web of uncertainty and undisclosed memories.

Shot in a contemporary urban setting, this smart, suspenseful tale features psychologically intrigue and fantastical plot twists.

This documentary series brings to life the amazing stories behind bizarre swarming phenomena in nature, and reveals the way that insects and animals organise themselves en masse.

When they swarm, they create a super-organism of incredible power. They can attack our food supplies, immobilise our transport systems, undermine our cities and even attack our energy supplies. They can stop us in our tracks.

From simple organisms such as swarming mayflies whose numbers can close entire roads, to the uncontrollable power of the locust swarm, this is a world of secret communication where the animal kingdom unite as one, often at human cost.