Jo Whiley's Radio 1 lunchtime show has become the latest BBC programme found guilty of faking a winner in a phone-in competition.
Several members of staff have been disciplined over the incident, which took place in April 2006 when one of the studio team posed as a caller. The DJ will apologise on her show today for the deception, which the BBC insists she knew nothing about.
A BBC spokeswoman said it was "unfortunate" the faked competition had not come to light in a recent trawl, which revealed several examples of programmes in which staff had posed as members of the public.
The incident occurred when two hours of Whiley's show were pre-recorded so she could attend the opening by the Queen of the BBC's new Broadcasting House.
A report on the fake was sent to the BBC Trust, which said yesterday it was satisfied at the actions taken by management. Last month, a producer on the Liz Kershaw show on BBC6 Music was sacked over similar competition fakes.