Front Row

John Wilson reports from historic houses, including Chatsworth in Derbyshire, Strawberry Hill in Twickenham and Dumfries House in Ayrshire, to see how they face up to the challenges of the 21st century. After a 14 million pound refurbishment Chatsworth House has just reopened to the public and John is given a guided tour by the Duke of Devonshire. Two years after Dumfries House was saved for the nation with the help of Prince Charles, John discovers whether the visitors have embraced its somewhat remote location. And John dons his hard hat to visit Horace Walpole's Gothic fantasy castle Strawberry Hill, undergoing a multi-million pound restoration.