shows on BBC Four

Prof Jim Al-Khalili tackles the biggest subject of all, the universe, through a series of critical observations and experiments that revolutionized our understanding of our world.

A comedy featuring a government whistleblower and an internet entrepreneur who become trapped together in a London embassy.

Helen Czerski explores the incredible science of temperature. She'll take us from a starting point of the simple human sensations of heat and cold deep into the world of molecular physics, fluid dynamics and high-energy plasmas to reveal the mind-bending science that lies at the heart of this most immediate of our senses. She'll reveal that temperature is so much more than a nice hot cup of tea or the cool of a winter breeze. In fact, what we perceive as temperature is just our senses reacting to the vibration of atoms and molecules. But these vibrations have the ability to change the state of matter, forge new elements from old and start reactions that can transform the world in beautifully constructive or horrifically destructive ways.

Fusing biography, art and the history of fashion, Amber Butchart explores the lives of historical figures through the clothes they wore.

Acclaimed two-part series based on the true story of an unprecedented hostage crisis which shocked Germany in the summer of 1988. Two robbers hold up a bank and demand free passage from the police while taking bank employees hostage.

Marking the 250th anniversary of Beethoven's birth in 1770, a documentary series that focuses on the real, complex and often difficult man behind the great composer.

Brian Pern presents a spoof of some of the biggest events that have taken part in rock history.

Employed by a failing outsource provider as a Care Assistant in the community, Kim receives little more than the minimum wage for a package which consists of unpaid overtime, management bullying and horrendous shifts. Her daily slog is matched only by that of her husband, Dave, a self-employed private hire driver battling long days and grumpy customers, with only the rattlings of fellow driver Terry to fill the endless hours of waiting. Add to the above an ailing mum, three kids, a dog called Carpet, an unfinished extension and a sister Jackie with a plan to sort out all their woes at a stroke. Going Forward is a universal tale and holds a mirror to modern Britain and the sacrifices made as lives are put on hold for the sake of others. The unique series treads its own fine line between tragedy and triumph to add its own bittersweet voice to this well-trodden ground.

Professor of physics Jim Al-Khalili investigates the most accurate and yet perplexing scientific theory ever - quantum physics.

Join Dr. Bendor Grosvenor and Jacky Klein as they seek out the work of some of the biggest names in art, lying hidden in local museums and country houses all across Britain. Britain's publicly owned art collection contains over 210,000 paintings. But at any one time, over 80 percent of these are locked away in storage. And, among this secret treasure trove of mystery paintings are some of the finest works of art the public owns - but didn't know they had. There might even be some priceless Old Masters lost in the vaults.