Four quizzers battle each other (and host Tom Gleeson) in TV's funniest quiz show. Tonight: South Park expert Ed, Titanic expert Simon, wives of Henry VIII expert Sam, and Rebecca, an expert on author Matthew Reilly.

Let's play...HARD! Tom Gleeson tests contestants on their special topics. Tonight, astronomy expert Alex, Hawke & Keating expert Andrew, Rabbitohs expert Lyn and 'Princess Bride' expert Alex. Who will earn the Big Brass Mug?