Lord Patten, who heads the BBC Trust, has pledged to get to get to the truth following the Jimmy Savile scandal, stating "our public expects no less".
Writing in the Mail on Sunday, Lord Patten says: "even those of us who weren't there are the inheritors of shame".
He adds: "Can it really be the case that no one knew what he was doing? Did some turn a blind eye to criminality? Did some prefer not to follow up their suspicions because of this criminal’s popularity and place in the schedules? Were reports of criminality put aside or buried?"