Tom Gleeson pits four experts against each other. Competing for tonight's Big Brass Mug: Jay, a Babe Ruth expert; Brett, a Billy Joel expert; Rowan, an expert on the Cold War & Megan, an expert on TV comedy The Mighty Boosh.

Australian explorers expert Cheryl, Happy Days expert Paul, Bangladesh cricket team expert Arthur and Hunter S. Thompson expert Jacob fight for the title of Australia's Hardest Quizzer - and Tom Gleeson's Big Brass Mug.