Tony Hall will begin the job of repairing the BBC's battered reputation when he takes up the role of director general today.
Lord Hall, who started out as a BBC trainee 40 years ago, will spend part of his first day in the office speaking to staff at the corporation, which has been beset with problems since the Jimmy Savile sex abuse scandal came to light.
In addition, the former BBC news executive also has low staff morale to contend with, a fact highlighted by last week's strike in a row over jobs, workload and claims of bullying.
When previous director general George Entwistle stepped down in November after a Tory peer was mistakenly implicated in child abuse claims on BBC2's Newsnight, Lord Hall was the only candidate contacted by the BBC Trust.
Before being offered the £450,000-a-year post, Lord Hall had been chief executive of the Royal Opera House, a job he took up in 2001.
More top news
The decision was met with outrage and anger, after shortlisted cities had ploughed hundreds of thousands of pounds into their bids.
Mr Lewis is one of a number of Labour and Tory MPs under investigation by party officials over allegations of inappropriate conduct.
A jury has failed to reach a verdict in Emile Cilliers' trial on charges of attempting to murder his wife by tampering with her parachute.