Presenter Tim Wonnacott visits Grimsthorpe Castle and discovers how the title of Lord Great Chamberlain did the stately pile a power of good. A newly-engaged couple take on a husband and wife married for 43 years in their search for bargains. They are advised and guided by experts Mark Stacey and David Harper. But will their items make any profit when they are sold at auction in Mackworth, Derbyshire?