Celebrities hunt for antiques across the UK. Two favourite Blue Peter presenters Sarah Greene and Peter Duncan are in the company of Natasha Raskin and Catherine Southon as they hunt for antiques around Surrey, Hertfordshire and north west London. Peter detours to learn how hockey became a popular sport the world over, while keen aviator Sarah sees how the Battle of Britain was won. An incredible haul of antiques, including chimney pots, Pinocchio and a pair of African fertility figures, go under the gavel at an auction in Tewkesbury, Gloucestershire.