Propaganda advert from the BBC released in 2000. Sinister piano and serious voice over followed by a direct threat in words are how the BBC like to do business. Intimidation, threats, scaring home owners directly and above all LIES - handheld detectors have NEVER existed and still don't to this day.
The BBC will lie and intimidate anyone, anytime to get their hands on your money. Scared people are more likely to pay up.