That is, while Peter Sinclair may have morphed into Peter Williams, TV's most austere game show remains TV's most austere game show. Its sombre, Westminster-like format has changed little from its earlier rigid incarnation.
So, too, the foreboding chair and warden-like host.
Despite the wealth of many trivia-based TV game shows, Williams' starchy demeanour was a warning to all that with Mastermind, intelligence-gaming is a serious business.
Still, who can argue with an average audience of 477,000 viewers this year. Besides, the step back in time took nothing away from the Havelock North teacher's win. Peppered with arcane questions under the spotlight, the 35-year-old rarely faltered, and even said the pressure was "addictive".
What a credit to his school, profession and province.
His triumph, if nothing else, can only inspire much confidence in his students. Fancy being taught by the country's top brain?