Both Mr Entwistle and Ms Boaden have not provided responses to the points raised by Panorama.

BBC: Newsnight journalist warned of BBC Savile scandal

But news executive Helen Boaden said she "had never heard any dark rumours".

BBC: Savile inquiry: Paxman said DJ rumours 'common gossip'

However, neither Ms Boaden or Mr Mitchell were in the decision-making chain that led to Newsnight's broadcast.

BBC: Boaden and Mitchell to stand aside