LONDON, ENGLAND - NOVEMBER 12: Men walk past a bank of television screens displaying BBC channels in the BBC headquarters at New Broadcasting House on November 12, 2012 in London, England. Tim Davie has been appointed the acting Director General of the BBC following the resignation of George Entwistle after the broadcasting of an episode of the current affairs programme 'Newsnight' on child abuse allegations which contained errors. (Photo by Oli Scarff/Getty Images)
