BBC Trust Chairman Lord Patten will appear before MPs later today and looks set to face a grilling over former Director-General George Entwistle's £450,000 pay-off.
Lord Patten goes in front of the Commons Culture, Media and Sport Committee alongside acting Director-General Tim Davie, who is leading the corporation until Royal Opera House chief Lord Tony Hall takes up the post in March.
Their appearance comes amid continuing anger at Westminster over the award of a full year's salary to Mr Entwistle after he was forced to quit after just 54 days in the job.
Mr Entwistle resigned after the BBC's Newsnight programme wrongly implicated the former Conservative Party treasurer, Lord McAlpine, in a child abuse scandal.
Today's hearing will cover both the dropped Newsnight investigation into Sir Jimmy Savile and its botched investigation into the North Wales children's home abuse scandal of the 1970s and 1980s.
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