Series 31, Episode 18. Together on Graham's sofa tonight: Hollywood great Jodie Foster, starring in the latest season of TV drama: 'True Detective: Night Country'; Oscar-winner Olivia Colman, talking about her new mystery comedy 'Wicked Little Letters'; US comedy great Wanda Sykes, whose new Netflix special is 'Wanda Sykes: I'm an Entertainer'; and doyenne of British TV Lorraine Kelly, discussing her debut novel 'The Island Swimmer'. 18/21. Graham Norton introduces another instalment of his trademark mix of cheeky celebrity chat and live music performances.