Jimmy Savile sexually abused victims at BBC properties in Glasgow, a leaked report has revealed.
The draft report produced during an official review of Savile's time at the BBC by retired judge Dame Janet Smith, criticises the corporation for having managers who were "above the law".
The report, published on Thursday, warns that it was possible another "predatory child abuser could be lurking undiscovered in the BBC even today".
Rapes, indecent assaults on both boys and girls, and incidents of "inappropriate sexual conduct" with teenagers over 16 were all "in some way associated with the BBC", the draft report published by news site Exaro, states.
Three of Savile's victims were only nine, it adds. Incidents occurred at "virtually every one of the BBC premises" in which Savile worked and more than 100 employees at the corporation told the review they had heard about Savile's sexual conduct.
It was revealed incidents took place at BBC properties in Glasgow and Manchester, BBC Television Theatre, Broadcasting House, Television Centre, Lime Grove studios and other studios around the UK.
Staff said they were aware of his behaviour but were scared to report it to managers, the draft report states.
Dame Janet accepted denials from senior bosses that they were aware of his sexual activity, according to the leaked document. However, she does not criticise the BBC for not uncovering the abuse.
Savile was found to have carried out four rapes, two of girls under 16, and one attempted rape, which were among 61 incidents of sexual assault.
Investigations into allegations of sexual assault were "wholly inadequate", and the BBC was criticised for failing to properly examine his personality, despite rumours about him and that he worked with children.
Retired judge Dame Janet said in the report that while there were "several factors, incidents and conversations" that together pointed to a potential problem with the broadcaster, "I do not think the BBC can be criticised for failing to uncover Savile's sexual deviancy".
She adds that no senior BBC staff were ever aware of information which could have "led to, or assisted in, the prosecution of Savile", and that "prosecution and imprisonment" was the only way to stop him.
But she does condemn the BBC for its culture, according to Exaro, saying: "My general impression is that most staff (other than those who had been in the higher echelons) felt that the management culture was too deferential and and that some executives were 'above the law'."
A statement on the Dame Janet Smith Review website expressed disappointment at the leak of the draft but said it was out of date.
The statement said: "The review is disappointed by the decision of Exaro to publish, in breach of confidence, extracts from a leaked copy of an early draft of its report.
"That document is out of date and significant changes have been made to its contents and conclusions. The document should not have been made public and cannot be relied upon in any circumstances.
"The review will work with the BBC to arrange publication of its final report as quickly as possible to ensure that accurate and responsible reporting can take place."
The leaked draft was published a day after the review announced that the long-delayed final report would be published within six weeks.
It said this was because "the review has been informed by the Metropolitan Police that it is no longer concerned that publication of the report could prejudice its ongoing investigations."