LONDON -- The BBC has become the latest large institution to find itself accused of failing to stop sex abusers in its midst, with its chief acknowledging Tuesday that a "cultural problem" within the broadcaster had allowed the late TV host Jimmy Savile to molest children and teenagers for decades.

BBC director-general George Entwistle told British lawmakers that it is too early to say whether sexual abuse had been endemic within Britain's publicly funded national broadcaster. But he acknowledged there had been "a problem of culture within the BBC ... a broader cultural problem" that allowed Savile's behavior to go unchecked.