I doubt anyone minds funding Attenborough.
Problem is we have been forced to fund characters like Saville which there is a very good possibility that his actions were well known by persons at the BBC and covered up whilst he still received big pay cheques.
Really, and this is before any of the reports are in...I don't know why the BBC and government are wasting millions doing in depth investigations if we all "know" the BBC did a cover up.
I guess we should also shut down the NHS, although he worked for free there.
Paedophiles tend to, by their very nature, be secretive about their crimes.
At the moment all people appear to have known was that there were rumours, no victims came forward AFAIK, no first hand witnesses came forward, when the BBC did try to look into the rumour on at lease one occasion they could find nothing (even the police who had far more powers when victims from other areas he committed his crimes could find nothing).
And most of this was back before you could even relatively easily check on previous rumours or even locations of personal and guests/visitors more than a few days/weeks in the past (computers make spotting patterns of rumours etc much easier).
To put things in perspective the BBC operated policies at the time that were well in advance of the legal requirements for child protection, requiring parents/guardians or chaperones to be present with any one under 16 working for them, appearing in shows, and even in the audience, and some shows had a flat out ban on under 16's in the audience.
Also to put things into perspective, yesterday a Consultant at Stoke Mandeville Hospital was convicted of committing similar crimes whilst the victims parents were in the same/next room!*
Yet it's taken 30+ years for him to be convicted, obviously the hospital and parents were covering up for him (or more likely like Saville he managed to hide what he was doing from people).
*IIRC this is a Consultant that was also convicted 20 years ago for having child porn pictures in his filing cabinet, yet no one seems to have picked up on these rapes/assaults.