Celebrity Mastermind returns on SBS and SBS On Demand August 3, 2021 9:52 Celebrity Mastermind is set to return to SBS and SBS On Demand from Saturday 28 August at 8.30pm. The announcement: SBS is excited to announce the return of Celebrity Mastermind, featuring 16 well-loved Australian celebrities, on Saturday, 28 August at 8.30pm on SBS and SBS On Demand. Quizmaster Marc Fennell will grill the celebrities over five weeks as they battle it out for the winning title. The 16 celebrities facing the black chair in the second season of Celebrity Mastermind are Gold Logie-winner John Wood, Human ...