Sir Jimmy Savile's former director on Jim'll Fix It said last week he saw the presenter having sex with a 16-year-old girl in his dressing room and informed BBC officials who 'did nothing'.
David Nicolson, 67, said he reported the incident to his bosses at the corporation in 1988 but was rebuffed and simply told: "That's Jimmy."
He told The Sun newspaper: "I was revolted by his behaviour. They just shrugged it off, saying, 'Yeah, yeah -- that's the way it goes'."
"Everyone knew what was going on. That includes senior BBC people -- chiefs at the highest levels. There were always girls in Jimmy's dressing room. Everyone would have known about it -- all the hair and make-up people, the wardrobe, show directors, producers."
Mr Nicolson described stumbling upon Savile and the young girl in a state of undress and being told to leave by a furious Savile.
He said: "I was shocked. I'd gone in to talk business -- and quickly got out. It was a bog-standard changing room in the basement. They both quickly pulled up their pants.
"The girl could have been 16, maybe 15. But she was just one of many -- he always had one in the room. He said: 'What do you want young man?' and shouted at me to get out of the room.
"They both looked embarrassed -- but she was not distressed." This type of behaviour by Savile was well known at the corporation at the time, Mr Nicolson said.
"Savile always used to bring scruffy girls into the studios -- all teenagers. But no questions were ever asked.
"In rehearsals for Jim'll Fix It they would be hanging around -- and during breaks they would go with Jimmy back to his dressing room. Everyone knew what he was doing. It was talk of the town and talk of the BBC that Jimmy loved young girls."
Meanwhile, the wife of Savile's former driver has described how the deceased presenter would cruise the UK in a mobile home with young girls, and would signal for her husband to leave him alone with the words: "Go and get a cup of tea."
Dennis Garbutt, 78, was Savile's driver for a year in 1971. His wife Lucy told The Mirror newspaper: "Savile would say, 'Go and get a cup of tea, Den' and that was his way of saying he wanted to be alone and it was obvious why.
"Den would then go to the pictures or just walk the streets for a while. Den knew what was going on and we regret not doing anything about it at the time. He said Savile would have girls wherever he went. I couldn't say how many, it was all over the country every time they stopped."