Louis Theroux has said he wishes he had been able to reveal "more" about Jimmy Savile.
The 44-year-old documentary maker profiled Savile in his BBC series When Louis Met... in 2000.
On whether he gets asked much about the programme, which featured the DJ who carried out hundreds of incidents of sexual abuse on children, Theroux told Metro: "Not as much as you'd think.
"Looking back, I wish I'd been able to reveal more but, saying that, when I watched it again after the revelations came out I feel I got closer to the truth than anyone else.
"It wasn't an overly respectful programme, it was an examination of this quite dark character, and I was one of only two people who raised allegations of him being a paedophile."
On whether the presenter ever emanated "waves of evil", Theroux replied: "No. If he had, he'd have been caught and questioned a lot earlier."
Last year, Theroux said he was sorry that he could not have "shed more light" on Max Clifford's sexual assaults when he made a similar documentary about the publicist in 2002.
