BBC Three will become an online-only channel next year, the corporation's director-general has confirmed.
In an email to staff, Tony Hall said it was "the right thing to do" as the channel's young audience were "ready to move to an online world".
BBC director-general Tony Hall said David Jacobs was "one of the great broadcast personalities."
The BBC could look at how to stop actors "muttering" in its TV dramas, director-general Tony Hall has said.
In a Q&A session with the Radio Times, he said the corporation was trying to address the problem of background music making it difficult for some, particularly older viewers, to hear what is being said on programmes.
He told the magazine: "You are balancing people's needs as they get older... with the creative need of a director to put in music or other sounds that help to make the drama or the programme more real and vital.
"Danny Cohen (director of television) has been going through this with executive producers to try to get this better, and I think the complaints are much, much reduced."
But Mr Hall added: "I also think muttering is something we could have a look at. Actors muttering can be testing - you find you have missed a line... you have to remember that you have an audience."
The BBC has abandoned its plans to create an internal digital archive, after scathing criticism from its new Director-General Tony Hall.
The Digital Media Initiative (DMI), which was aimed at digitising the corporation's vast archive to make it more accessible to staff, has cost the corporation £98.4 million since its introduction in 2008.
Mr Hall, who began his new role as Director-General last month, said: "The DMI project has wasted a huge amount of licence fee payers' money and I saw no reason to allow that to continue, which is why I have closed it.
"I have serious concerns about how we managed this project and the review that has been set up is designed to find out what went wrong and what lessons can be learned."
The BBC has since suspended its chief technology officer John Linwood from his £280,000-a-year job while the review is carried out.
Mr Hall added that the organisation needed to take more responsibility for keeping ambitious schemes under much greater control.
'Ding Dong! The Witch is Dead' has jumped to number four in the charts after anti-Thatcher campaigners adopted the song as their anthem in the days following the former Prime Minister's death.
Director General Tony Hall is quoted as saying that while he thinks the campaign to make the song top the charts is "rather tasteless," the choice of whether to play the song on air is for news editors to make.
Supporters of Margaret Thatcher, including former Conservative treasurer Lord McAlpine, have expressed outrage that the possibility is even being considered, saying it is a matter of taste.
The new director-general of the BBC has criticised the large pay-offs given to senior staff in the past when they left the corporation.
Tony Hall, who took over the reins yesterday, said the large sums paid out had "not been right".
His immediate predecessor George Entwistle, who stood down over the Jimmy Savile scandal, walked away with a £450,000 pay-off - double the amount he was entitled to.
The BBC's new Director-General today denied that he had heard any rumours about disgraced DJ Jimmy Savile during his previous 28-year stint at the corporation, adding "I don't know whether it's important if I did or not."
The BBC's Director of Television, Roger Mosey, tweeted shortly after the first board meeting.
The BBC's new Director-General Tony Hall began his first day on the job with an email to all staff declaring his confidence in the corporation's future, the BBC website reported.
He said the corporation is learning the lessons from recent "difficult times".
Ahead of his first day on the job as the BBC's new Director-General, Tony Hall told reporters it is "exciting" to be returning to the place where he started his career and said he is proud and privileged to be taking up the post, which he described as an "enormous responsibility".