For his edition of Artsnight, BBC arts editor Will Gompertz investigates the thriving art market. He meets collectors, philanthropists and multi-millionaires pursuing their passion for art, and asks whether record-breaking sales are a good thing or damaging creativity. Arguing for better regulations in the art market, he finds out why you can buy an Old Master for a fraction of the price of contemporary art. He talks to Nobel Prize-winning author Orhan Pamuk about his vision for a new type of museum and meets the 89-year-old grandmother of contemporary art - Delfina Entrecanales - who for 40 years has quietly nurtured a generation of British artists, including more than a dozen Turner Prize nominees Show less