The BBC Trust is due to meet the corporation's director general Mark Thompson over recent editorial lapses.
There has been a "systemic failure" in the way TV channels have run premium rate phone services, Ofcom has found.
These included a trailer shown to journalists for a documentary series which appeared to show the Queen storming out of a photo shoot.
The media regulator launched an inquiry following a number of scandals involving phone-ins in programmes.
The BBC and the company which made the clip have both apologised.
The inquiry found broadcasters were "in denial" about their responsibilities to viewers and saw phone-ins as a way to generate revenue.
The trust, which represents licence payers, will also discuss the BBC's fine by media regulator Ofcom for faking a Blue Peter competition winner.
The inquiry comes on the day the BBC's director general is meeting with the Trust over recent editorial lapses.
Error of judgement
Mr Thompson will give his account of both incidents, and the Trust is expected to outline its response.
He has said he will set out how he intends to minimise the risk of anything like these "totally unacceptable incidents ever happening again".
BBC One's autumn launch promotion created the impression that the Queen had stormed out of a photoshoot with photographer Annie Leibovitz during the filming of A Year With The Queen.
The production company, RDF, has admitted it made a serious error of judgement in "manipulating the chronology" of the footage.
The controller of BBC One, Peter Fincham, said he was not planning to resign.
Earlier in the week, the BBC was handed its first ever fine of £50,000 after the results of the Blue Peter competition were faked last November.
In the wake of both blunders, Mr Thompson apologised and urged BBC programme-makers to report other occasions where audiences may have been deceived.
Mr Thompson told staff: "We cannot allow even a small number of lapses, whether intentional or as a result of sloppiness, to undermine our reputation and the confidence of the public."
