Bargain Hunt

Alexandra Palace plays host to the teams, which include a Wizard of Oz fanatic and a collector of obsolete musical equipment. Guiding the reds and the blues are experts Philip Serrell and David Barby. But when the items go under the hammer at auction will they make a wizard win or hit a bum note? Tim Wonnacott visits the Victoria and Albert Museum to take a look one of its many remarkable exhibits.