Janice Hadlow took a sabbatical last year to write a book about George III
Head of BBC Four Janice Hadlow has been announced as the new controller of BBC Two, replacing Roly Keating.
Ms Hadlow, who has been at the digital channel since 2004, will start her new job next month.
Director of BBC Vision Jana Bennett said she was an "outstanding original thinker who has led BBC Four from strength to strength".
Ms Hadlow said: "There could be no better job in the broadcasting world than that of controller of BBC Two."
"For me, there's no channel that's more exciting, more original, more enticing and above all, more important.
"Growing up, it was BBC Two that helped shape my vision of the world, with its distinctive mix of intelligence, authority and wit," she added.
In July it was announced Mr Keating would the corporation's first director of archive content.
Ms Bennett said Ms Hadlow "demonstrated a passion for intelligent television across the different genres", and would carry on Mr Keating's success in "reinvigorating" BBC Two.
Successful shows on BBC Four during Ms Hadlow's tenure include Genius Of Photography, The Curse Of Comedy and The Thick of It.