Plot: The bargain hunters do battle at Portobello Market, where antique experts David Barby and Philip Serrell attempt to guide their two all-male teams through the maze of delectables on offer. Both teams are confident, but will their items crash and burn or fly over at the auction? Presenter Tim Wonnacott takes a stroll over to the V&A museum, and discovers gems of Royal London's history amongst its many corridors