Season
Episode
- Episode 1: Greek Mythology, SpaceX, Rake & the Holden Commodore
- Episode 2: The Tuba, Gone with the Wind, Paul McCartney & the Battle of Britain
- Episode 3: Alfred the Great, Bob Dylan, the British Open & Degrassi
- Episode 4: Wally Lewis, Mel Brooks, Mushrooms & Stephen Sondheim
- Episode 5: Kanye West, Gavin & Stacey, Robert F. Kennedy & Jane Austen
- Episode 6: Olivia Newton-John, Collingwood FC, Garlic & Top Gun
- Episode 7: Field Hockey, Willy Wonka and the Chocolate Factory, Sister Elizabeth Kenny & Milk
- Episode 8: HMAS Melbourne, Justin Bieber, Socceroos & Jim Henson
- Episode 9: Schitt's Creek, Japanese Railways, Percy Jackson & Hank Williams
- Episode 10: Ghostbusters, Pink Floyd, classic Minis & the Kim Dynasty
- Episode 11: Battle of the Duds
- Episode 12: Novak Djokovic, Mary Poppins, black holes & the European Union
- Episode 13: My Fair Lady, the Qantas Flight 32 Emergency, TikTok & Ricky Ponting
- Episode 14: Spartacus, Glee, Penguins & the Trump Presidency
- Episode 15: C-130 Hercules, Little Shop of Horrors, Simone Biles & World of Warcraft
- Episode 16: Star Wars action figures, Hanging Rock, Tomorrow When the War Began & Goo Goo Dolls
- Episode 17: The First Persian Empire, the Wiggles, TV show Scrubs & Guinness
- Episode 18: Kosciuszko National Park, the violin, Nelson Mandela & Sailor Moon
- Episode 19: Mad Max, The House of Windsor, Bjork, & Social Psychology
- Episode 20: Dracula, Hillary Clinton, Virat Kohli & Gibson Guitars
- Episode 21: Tenzing Norgay, diamonds, Frozen & Turnbull government
- Episode 22: French & Saunders, Tiger Woods, Calculus & the Brooklyn Bridge
- Episode 23: Petula Clark, How to Train Your Dragon films, periodic table, & F/A-18 Hornet
- Episode 24: Silverchair, the 'Monster Petition', William the Conqueror & 'The Castle'
- Episode 25: Les Miserables, book series Grug, Meghan Markle & money laundering
- Episode 26: Mortal Kombat, Ace Ventura, the Kray Twins & Airbus A320
- Episode 27: King Henry VII, Shaquille O'Neal, dinosaurs & Priscilla Queen of the Desert
- Episode 28: Manchester City, Blue Tongued Lizards, Mariah Carey & The Babysitters Club
- Episode 29: Bob Geldof, Machine Learning, the Owl & The Matrix Trilogy
- Episode 30: Chernobyl disaster, Ultimate Frisbee, Wallace and Gromit & Hanson
- Episode 31: Duke Kahanamoku, AC/DC, Mean Girls & Australian Dung Beetle Project
- Episode 32: Twilight Saga, Midnight Oil, Danish Kings of England & Australian railways
- Episode 33: Battle of the Duds
- Episode 34: Vintage Synthesizers, Dance Academy, Neil Armstrong & Sierra Leone
- Episode 35: Billy Idol, The Witcher, Stephen King's IT & '80s and '90s supermodels
Hard Quiz Season 6 Kosciuszko National Park, the violin, Nelson Mandela & Sailor Moon
Host Tom Gleeson sets out to find Australia's hardest quiz champion, pitting four contestants against each other in a battle of attrition.
