Former Gold Medalists Robin Cousins and Tessa Sanderson hit the road with £400 to invest in antiques, heading to Bury St Edmonds and then onto Safron Walden. Experts David Harper and David Barby lend a hand with the shopping and their hunt includes welcome visits to the Whipple Museum in Cambridge and the wonderful Fan Museum in London. The trip ends at auction in Greenwich. Who will walk away with the biggest profit?