There are two female tv presenters , both in their 70s & 80s now who have both denied knowing anything about JS. I find that hard to believe.
Both of them have been very outspoken about many things and were surely in a position to do something. Both had long standing jobs at the BBC, are well known and had the power to do something. This isn’t me blaming them, it’s not their doing, however together they could have made a stand.
Oh, it was very well known. Terry Wogan was quoted (he might have actually said it on TV himself, I can't quite remember which) as having been asked by a journalist why he/nobody else spoke up, and his reply was that it was their (the journalist's) job, not his. I was a big fan of Terry, but very sad that he didn't seem to see child protection as everybody's job.
Again, I can't remember whether it was Terry himself or the longstanding producer, but they were vehement that Savile was not welcome to come anywhere near Children In Need, even though he apparently expressed regular interest in becoming involved.
Then again, IF our suggestions about Jill are anywhere near the truth, I suppose it was a very clear signal of what could happen to anybody who did make noises about exposing him or even delving any further than just 'avoid him, he's a strange one'.
Ironically, Johnny Rotten probably got away with it because he was seen as the anarchist who would make outrageous statements about the establishment for his own publicity purposes and could easily just be brushed off as a bonkers attention-seeker.
On the other hand, if 'normal, nice' respected journalists/presenters started exposing him in public, that would be much harder to brush under the carpet. I suppose, if you knew that doing so would spell the end of your career/life - likely before you were able to tell in public anyway - you would probably see it that you had everything to lose and nothing to gain anyway.
There's no doubt whatsoever that JS was not the evil lone wolf certain corporations and establishment bodies like to paint him as. He would never have been allowed to continue doing what he did, right up until his death, if he hadn't been in a position to take some very powerful people down with him if they didn't ensure he was protected.
This is just my ponderings, but I wonder if Jill did know about JS, but wasn't aware of just how far his claws went and who was connected with him. She very well may have unwittingly signed her own death warrant by discussing with some of his 'friends', not realising that they were involved too - and that their reaction might have been not to work with her in exposing him, but to protect their own interests by colluding to help him (and themselves) by killing her.
Again, the Serbian story sounds like the biggest, most ridiculous conspiracy going. Of all the internationally-famous top British figures they could have taken out, to make their point on the global stage, it's beyond ludicrous to suggest that they would have deliberately chosen to target her, lovely, domestically popular and good at her job as she was.