Countryfile - 23/08/2009

Julia Bradbury heads to Wiltshire to join a group of enthusiasts as they try to establish whether Milk Hill or Tan Hill is the county's tallest. Could their discovery change the Ordnance Survey map forever? John Craven investigates the campaign to get consumers to eat less meat, and finds out if it could really make a difference to climate change. And it's a busy time down on Adam's farm as he brings in this year's harvest.