BBC Four HD Today

Angela explores the River Severn, setting off from its source at Plynlimon and discovering the birthplace of the Industrial Revolution, then going afloat in a coracle

Robbie Cumming battles his way through blanket weed as he travels along the Shropshire Union Canal and discovers industrial secrets in Audlem, Cheshire

A look at how with Nazi Germany on the brink of collapse and with Berlin under daily bombardment, Hitler permanently retreated to his bunker

Part two of two. Amateur footage from the latter half of the war offers an insight into life and atrocities in Germany and the occupied territories as Hitler's dreams crumble

The team goes on a cosmic adventure to explore the search for exoplanets, the distant worlds that orbit stars beyond the Earth's solar system

The novelist looks back on his 1990 Omnibus film about Peruvian writer Mario Vargas Llosa, when he followed the Peruvian writer as he ran for Peru's presidency

Documentary following the novelist's campaign for the presidency of Peru in 1990, weaving together his changing relationship with both literature and politics

The second episode looks at the final downfall of the Nazi regime following Hitler's suicide, and life for the people of Berlin under occupation by the victorious Soviet army

Angela explores the River Severn, setting off from its source at Plynlimon and discovering the birthplace of the Industrial Revolution, then going afloat in a coracle

Robbie Cumming battles his way through blanket weed as he travels along the Shropshire Union Canal and discovers industrial secrets in Audlem, Cheshire

Part two of two. Amateur footage from the latter half of the war offers an insight into life and atrocities in Germany and the occupied territories as Hitler's dreams crumble

A look at how with Nazi Germany on the brink of collapse and with Berlin under daily bombardment, Hitler permanently retreated to his bunker