Highfield had held the post of BBC director of future media and technology - one of the most powerful roles in digital media in the UK - since 2000.
During his time with the BBC he was responsible for the successful rollout of the BBC's iPlayer.
The four-year, multi-million pound project launched at Christmas, last year, and has been responsible for bringing web TV to the masses.
In his new role Highfield, who will replace interim CEO Lesley Mackenzie, will oversee the launch of the Kangaroo service planned for later this year.
He will also be responsible for forging deals with third party content providers and organizing other distribution platforms for the service, which is subject to approval by the broadcasters' individual boards.
"Kangaroo is a historic partnership with a combination of innovative technology and terrific content and I'm looking forward to transforming the way audiences watch television," said Highfield.According to a report in MediaGuardian, Erik Huggers, a former Microsoft executive and current controller of future media and technology at the BBC, is likely to succeed Highfield.
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