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.

Hendrix hardhead Peter, Rolex watch watcher Mark, Futurama fan Anna and Russian Revolution researcher Colleen battle it out to become the #HardQuiz champion while Tom Gleeson gleefully takes the mickey. Let's play HARD!