Tom Gleeson dishes out the points and the putdowns as four experts vie for the Big Brass Mug with their topics: tennis star Samantha Stosur, Queen singer Freddie Mercury, TV sitcom Seinfeld, and the Galapagos tortoise.

Tom Gleeson puts four experts through the Battle of the Big Brass Mug! This week's topics are Prime Minister Anthony Albanese, medical drama Grey's Anatomy, echidnas, and the black and white canine adventures of Rin Tin Tin.