Naman Ramachandran On a tumultuous day at the Royal Television Society convention at Cambridge, Channel 4 CEO Alex Mahon and the U.K. government were very much in disagreement over the proposed privatization of the channel.Moments before Mahon took the stage, Oliver Dowden who was due to speak immediately after, was replaced as Culture Secretary by Nadine Dorries, in what was an equally tumultuous day at No.