BBC Four Tuesday

Fred explores the work of the builders and engineers responsible for the waterways of Britain, visiting the Leeds-Liverpool and Bridgewater canals

The explorer visits Windermere in the Lake District, where he plunges into the world of long-distance swimming and helps the staff who run the waterway's boats

Richard employs a new farm manager, and Audrey is forced to learn the art of housekeeping when Brabinger falls ill. Originally broadcast in 1980

Hyacinth and Richard move into their country retreat, and while she thinks it is 'olde worlde bijou', he finds it a disappointment

Documentary charting the rise and fall of the Boleyns, a story of love, sex and betrayal told from the family's unique perspective

Professor Jim Al-Khalili unravels the cosmic mystery of science's creation story, recreating key experiments to tackle the greatest question in science

Antique restorer Koji Mayuyama and his son Yu undertake the restoration of a ceramic horse from the Edo period. A previous restoration is now showing signs of age

Chris Lintott and the team explore the extraordinary engineering, both on Earth and millions of kilometres above it in space, that is transforming modern astronomy

Documentary charting the rise and fall of the Boleyns, a story of love, sex and betrayal told from the family's unique perspective

Fred explores the work of the builders and engineers responsible for the waterways of Britain, visiting the Leeds-Liverpool and Bridgewater canals

The explorer visits Windermere in the Lake District, where he plunges into the world of long-distance swimming and helps the staff who run the waterway's boats

With the help of singer Lesley Garrett, Helen Czerski explores the science of the voice, and conducts sound measurements using state-of-the-art lasers on Big Ben