At Shropshire's Oswestry Showground, two teams hope their items will make record-breaking profits at auction in Wrexham. Expert Philip Serrell guides Richard and John, representing the reds, while Matthew and Becky, on the blues side, are helped by Ben Cooper. Presenter Roo Irvine monitors progress and also hears all about a world record-breaking collection of ear trumpets, some of which date back to the 1700s, which are proudly on display inside Oswestry's museum