Tom Gleeson takes four contestants through their paces to find the Hard Quiz Champ. Tonight, Benedict Cumberbatch expert Dave, Led Zeppelin expert Paul, US Geography expert Kelly and One Direction expert Velvet all play HARD!

Who'll emerge triumphant from tonight's battle of wits? Mary McKillop expert Georgina, Rolling Stones fan John, Miss Marple maestro Julia and Sachin Tendulkar specialist Theja go up against each other.