Matt Baker and Julia Bradbury explore the Kennet and Avon canal in Wiltshire which is celebrating its 200th anniversary, while John Craven investigates food waste including claims that up to half of the produce grown on some of our farms never even finds its way to the supermarket shelves. Adam Henson gets to grips with the big freeze as he battles through the snow to make sure all his animals are fed and watered. Plus Katie Knapman heads to Cambridgeshire to have a go at fen-skating.