Flog It! comes from Ragley Hall in Warwickshire, a beautiful 17th-century Palladian house owned by the Marquess of Hertford. Antiques experts Will Axon and Christina Trevanion find treasures to take off to auction, like a Polynesian paddle and a stunning 18th-century drinking glass. Paul Martin explores the work of famous sculptor and wood carver Grinling Gibbons.