Kevin Cook, aged 45, of Essex, has told ITV News Jimmy Savile abused him after he appeared on Jim'll Fix It aged nine.
He said: "He made some threats to me, telling me not to tell anybody. I was just so scared. He told me no-one would believe me and that he knew where I lived."
He added: "I feel like a new man now I have told somebody. A weight has been lifted off my shoulders."
Watch the full interview with Kevin Cook on the ITV Evening News at 6.30pm.