Overview: Graham Norton returns for another series of his talk show, featuring the biggest celebrities, the brightest conversation and the best jokes on television. Together on Graham's sofa tonight: Oscar-winning actor Denzel Washington, starring in new movie The Equalizer; the acclaimed new Doctor Who, Peter Capaldi; actress Gemma Arterton, about to hit the West End in the musical version of Made in Dagenham; and hot new singer-songwriter George Ezra, who performs Blame It On Me.