New BBC chairman Samir Shah said the corporation should not have to justify "our very existence" every 10 years and the Government should have the confidence to say "the BBC is a really good thing".Mr Shah questioned why the BBC's charter needs to be regularly reviewed - unlike other bodies set up under Royal Charter, like the Bank of England and British Council - as he gave his first public speech in his new role.

New BBC chairman Samir Shah said the corporation should not have to justify "our very existence" every 10 years and the Government should have the confidence to say "the BBC is a really good thing".Mr Shah questioned why the BBC's charter needs to be regularly reviewed - unlike other bodies set up under Royal Charter, like the Bank of England and British Council - as he gave his first public speech in his new role.