Sarah Vine and Imogen Edwards Jones are joined by Paul Potts, the Britain's Got Talent winner who traded his job at Carphone Warehouse for a life as an Opera singer, playing around the world and selling millions of albums. Plus, Black Friday is upon us so Watchdog and This Morning star Alice Beer joins us to explain how to make sure the deal you're looking at is really worth your attention.  See omnystudio.com/listener for privacy information.