BBC Olympics chief Roger Mosey has been named acting director of BBC Vision, the group’s in-house commissioning department. Mosey will replace George Entwistle who becomes BBC director general in September. Outgoing BBC director general Mark Thompson informed staff of the appointment in an email this morning. Mosey is currently director London 2012, but will not oversee the Paralympics later this month as he’ll take up his new post on Aug 20. BBC Sport’s head of major events, Dave Gordon, is stepping in as director, London 2012. Thompson said a permanent Vision director will be appointed later this year. Mosey joined the BBC in 1980 as a radio reporter and held various posts until becoming Olympics director in 2009. The Olympics wrap next weekend and Mosey is shifting over as the BBC continues a streak of ratings highs.

Usain Bolt’s 100-meter final win on Sunday was watched by a peak audience of 20M across BBC One and BBC Olympics 3. It was the highest peak since the Opening Ceremony on July 27 (which itself is now the second most-watched program in UK TV history). Viewership of Bolt’s performance beat the BBC’s previous Games record when coverage of Mo Farah’s 10,000-meter gold medal triumph peaked at 17.1M on Saturday. Scotsman Andy Murray avenged his Wimbledon loss to Roger Federer taking a gold medal on Sunday – Britain’s first men’s singles gold in 104 years – with peak viewership of 10.7M on BBC One and BBC Olympics One.