The latest national and international news, exploring the day's events from a global perspective.
A festive edition of the quiz, featuring distinguished university alumni. A team representing Soas take on a University of Leeds side for a place in the semi-finals. Show more
Jim Al-Khalili investigates the most accurate, yet perplexing, scientific theory ever - quantum physics. He finds out whether it might solve biological mysteries. Show more
For one night only, Professor Brian Cox takes an audience of celebrity guests and members of the public on a journey into the wonderful universe of the Doctor. Show more
Until very recently the whole idea of the multiverse was dismissed as fantasy. Horizon asks whether multiple universes exist and, if so, which one we are actually in. Show more
Gabrielle Walker tells the remarkable story of how we discovered that the air around us is not just empty space, it is full of hidden wonders. Show more
Dan Snow looks at how the 19th-century Navy used gunboat diplomacy to push British interests further afield, before losing its naval supremacy after the First World War. Show more
Period crime drama. Tommy and Tatiana play a personal and dangerous game to acquire information from one another. Show more
Period crime drama. As the Russians test the Peaky Blinders, Tommy realises that he is being seriously outmanoeuvred. But he has an ace up his sleeve. Show more
Period crime drama set in Birmingham. As Tommy prepares to commit the most audacious crime of his career, a blow is struck against him that could change everything. Show more