T20, E22: Highlights from series 14 of the talk show. We recall Graham's best moments with a host of stars including Harrison Ford, Emma Thompson, Robert De Niro, Mary Berry, Sir Elton John, Lady Gaga, Benedict Cumberbatch, Michelle Pfeiffer, Matt Smith, David Tennant, Dame Judi Dench, Sir Paul McCartney, Katy Perry, Ben Stiller and Cher.