The Challenger

In this series Professor Iain Stewart tells a stunning story about our planet. He reveals how the greatest changes to the earth have been driven, above all, by plants.
In the third episode, Iain discovers the remarkable impact of just one plant: grass. On the savannah of South Africa he sees how grass unleashed a firestorm to fight its greatest enemy, the forests. He shows how cutting your finger on a blade of grass shows us how it transformed life in the oceans. In Senegal, he meets the cleverest chimps in the world. And, in the ruins of the oldest temple on Earth, he tells the extraordinary story of how grass triggered human civilisation.
Trailer
Recently Updated Shows

Taskmaster
Greg Davies is the Taskmaster who, with the help of his right-hand man, Alex, sets out to test the wiles, wit and wisdom of five hyper competitive comedians through a series of ingenious challenges. With the chance to be crowned show champion, rivalry amongst the comedians is encouraged, dodgy tactics rewarded and bribes accepted.

Marble Hall Murders
Susan Ryeland, is a book editor who all too often finds herself involved in baffling murders. Returning to England, she is reluctantly drawn into a new Atticus Pünd mystery, this time written by a new, young writer. "Pünd's Last Case" is a story set in 1955, in an exotic villa in Corfu – but the identity of a real killer is hidden in the book and once again Susan is going to find herself in grave danger.
Atticus Pünd, the literary detective, steps out of the books to help Susan unravel the real-life mystery. Who killed Miriam Crace, the most famous children's author in the world?

The Great British Sewing Bee
Amateur sewers take on challenges as they compete to be named Britain's best home sewer.

Survivor
Eighteen to twenty castaways will compete against each other on Survivor. All castaways will compete to outwit, outplay, outlast and ultimately be crowned Sole Survivor.
