David Walliams and Simon Cowell discuss the latest series of Britain's Got Talent, after the comedy performer's judging debut and the music mogul's return to full-time duties on the judges' panel. Hollywood star Danny DeVito talks about making his West End stage debut in a forthcoming production of Neil Simon's The Sunshine Boys, and comedian Dara O Briain takes a break from his Craic Dealer tour to catch up with Jonathan. Plus, singer-songwriter Labrinth performs. Last in the series.