This is BBC Four
Daily from 7.00pm.
Programmes start at 7.00pm.
Canals: The Making of a Nation
2. The Workers
Liz McIvor recounts the tales of the men who built the canals - the navigators or navvies.
Gareth Edwards’s Great Welsh Adventure
Series 2: Episode 4
Rugby legend Gareth and wife Maureen visit their top family holiday spot, St Davids.
The Secret Genius of Plants
Series 1: 1. Super Senses
For a long time we've known that plants can move, but recent studies reveal other secrets.
Wild
2006-07 Shorts: 5. Robins of Eden
A seasonal tale of the robins that have set up home at the Eden Project, Cornwall.
Tribe (2005)
Series 3: 5. Layap
Bruce Parry treks into the high Bhutan mountains to live with the isolated Layap people.
Lowry: A Simple Man
Ballet inspired by the industrial landscape paintings of LS Lowry. From 1987.
Castles: Britain's Fortified History
3. Defence of the Realm
How castle ruins took on a unique appeal, embodying a nostalgia for an age of chivalry.
Beautiful Equations
Matt Collings looks for the beauty and elegance in the most famous scientific equations.