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Watch Mastermind Australia Season 6 Episode 1 online — it may be available on legal streaming platforms such as YouTube, Netflix, Prime Video, Hulu, Disney+, and others.

It's champions week and past quiz show winners are battling it out to find out who is the ultimate quiz champion. Can Mastermind winner Troy Eggleston defend his title? The specialty subjects are: NRL State of Origin from 1985 – 2005, the Battle for Hill 60, Survivor All Stars and The Human Brain.