The public service broadcaster was found to have committed a "serious breach" of media regulations by failing to disclose that the presenter of a programme about the Gaza situation was the son of a Hamas representative, as determined by UK media regulator Ofcom.
An investigation by the broadcasting watchdog into the programme Gaza: How to Survive a Warzone has determined that the programme was "materially misleading".
The chief executive of the broadcaster had earlier expressed regret, noting there had been "a significant failing in relation to truthfulness".
The regulator has directed the corporation to air a peak-time declaration about its findings.
"As this represents a serious breach of our code, we are instructing the BBC to transmit a message of our determinations against it on BBC2 at nine o'clock in the evening, with a date to be finalised," it said.
'Potential to Damage Confidence'
The regulator's report declared: "Our probe found that the film's failure to disclose that the voice's father served in a role in the Hamas-administered government was significantly deceptive.
"It meant that the viewers did not have vital facts which may have been extremely pertinent to their evaluation of the presenter and the information he provided.
"Confidence is at the center of the connection between a broadcaster and its public, particularly for a state-funded media outlet such as the British Broadcasting Corporation.
"This failing had the possibility to damage the significantly high degrees of confidence that viewers would have put in a documentary produced by the BBC about the Israel-Gaza war."
The film was withdrawn from the online platform in the month of February after the narrator's personal associations came to light, and in July an corporation's own inquiry concluded it breached the corporation's content policies on accuracy.
A corporation official stated: "The authority's determination is in line with the conclusions of Peter Johnston's review, that there was a major oversight in the documentary in relation to the broadcaster's journalistic policies on accuracy, which corresponds to Rule 2.2 of the regulator's media standards.
"We expressed regret for this and we comply with the authority's determination in full. We will follow the directive as soon as the timing and language are finalised."
