âAn unguided missileâ: Was BBC interview really to blame for Dianaâs downfall? Weâre sorry, this service is currently unavailable. Please try again later. Dismiss By Camilla Tominey Save Normal text size Advertisement London: Prince Harry and Earl Spencer could hardly have been clearer. Princess Dianaâs landmark appearance on Panorama in 1995 led to her death. Martin Bashirâs âinterview of the centuryâ - as it was boastfully billed by the BBC at the time - attracted a British audience of 23 million viewers, and had profound and far-reaching consequences for the royal family. And, according to her younger brother and her youngest son, it also proved to be Dianaâs fatal mistake.