Sir David Frost on TV interviews and Henry Kissinger
30 November 2012 Last updated at 10:34 GMT
Sir David Frost said Henry Kissinger did not speak to him for 20 years after a misunderstanding about a TV interview.
The TV host revealed the story in a discussion about relations between politicians and the media, and how they have changed over the last five decades.
He debated with Andrew Neil, Alastair Campbell and Michael Portillo hours after the Leveson Report into the behaviour of the press was published.