Veteran presenter David Dimbleby was spectacularly schooled by Jacob Rees-Mogg during a humourous exchange on 'Question Time' on Thursday.
Dimbleby interjected when Rees-Mogg mentioned his nearby roots, quipping: "Eton, was that?"
But Rees-Mogg left the legendary broadcaster red-faced, when he said he’d been at the public school with Dimbleby’s son.
Watch the full exchange, above.
This week's show was held in Slough, less than 10 miles from Britain's biggest airport, which is embroiled in debate over possible expansion.
"I think we absolutely ought to extend Heathrow Airport," Rees-Mogg told the audience.
"It is the most convenient London airport. I realise that in Slough this may not please everybody."
However, huge local opposition, combined with intense political scrutiny has led to the government delaying its decision until next year.
Alongside Rees-Mogg, panelists included broadcaster Piers Morgan, Labour's Emily Thornberry MP, Ukip's Mark Reckless, and the SNP's Hannah Bardell MP.