BBC's Antiques Roadshow expert, Jon Baddeley, brought the show to a standstill to advise a guest he could be sitting on a small fortune. During an episode presented by Fiona Bruce, Jon encouraged the guest to take action after revealing that their item could rake in thousands. The episode, shot at Clissold Park in North London, saw Jon meet a guest who had brought along a collection of vibrant 1960s music posters. Jon observed: "So you've kindly brought us today a collection of psychedelic rock