Four know-it-alls want Tom Gleeson's Big Brass Mug: an Android smartphone aficionado, a Sydney Opera House tour guide, an AFL umpire, and someone who is into people getting hit with padded poles on the TV show Gladiators.

Tom Gleeson has Hard Quiz questions for those who covet his Big Brass Mug. Contestants are experts on the Avro Lancaster bomber, Canadian singer Celine Dion, comedy series The IT Crowd and African venomous snakes!