BBC Four HD Monday

The former steeplejack looks at structures from the Middle Ages, visiting England's oldest fortified building with a moat, Stokesay Castle, where he examines the huge roof timbers

Documentary that goes behind the scenes of the tunnel, meeting the teams above and below ground that keep everything moving through the longest undersea tunnel in the world

Janina Ramirez and Alastair Sooke discover the art and architecture of Barcelona, seeking out the Romanesque frescoes that inspired a young Miró

Part two of two. Historian Jonathan Foyle explores how the king's choices in art and architecture provide clues to his mental state, as he despaired of ever fathering an heir

The team delves into the world of astronaut training, discovering what it takes to become a European Space Agency astronaut. With guest Helen Sharman

The philosopher and academic gives a modern take on Bryan Magee's highly influential 1987 series about the history of western philosophy

Bryan Magee is joined by Myles Burnyeat to look at the works of Plato, universally recognised as the first western philosopher whose written works survived

Bryan Magee is joined by Martha Nussbaum to explore the ideas and principles of Greek philosopher Aristotle, whose work dominated western thought for many hundreds of years

Bryan Magee is joined by Anthony Kenny to look at medieval philosophers and the contribution of figures such as St Augustine and Thomas Aquinas

The former steeplejack looks at structures from the Middle Ages, visiting England's oldest fortified building with a moat, Stokesay Castle, where he examines the huge roof timbers

Documentary that goes behind the scenes of the tunnel, meeting the teams above and below ground that keep everything moving through the longest undersea tunnel in the world

Janina Ramirez and Alastair Sooke discover the art and architecture of Barcelona, seeking out the Romanesque frescoes that inspired a young Miró