The public service broadcaster engaged in a "major breach" of media regulations by failing to disclose that the presenter of a programme about the Gaza conflict was the son of a Hamas administrator, as determined by UK media regulator Ofcom.
An investigation by the media regulator into Gaza: How to Survive a Warzone has determined that the film was "significantly deceptive".
The chief executive of the broadcaster had already issued an apology, stating there had been "a significant failing in relation to truthfulness".
The authority has directed the BBC to air a evening declaration about its conclusions.
"Since this amounts to a significant violation of our regulations, we are instructing the broadcaster to air a statement of our findings against it on BBC2 at 9pm, with a date to be determined," the regulator stated.
'Possibility to Erode Trust'
The watchdog's report declared: "The inquiry we conducted found that the documentary's omission to reveal that the narrator's father occupied a position in the Hamas-administered administration was substantially inaccurate.
"It meant that the public did not have vital facts which may have been highly relevant to their assessment of the narrator and the details he provided.
"Confidence is at the heart of the connection between a media organization and its audience, notably for a state-funded media outlet such as the British Broadcasting Corporation.
"This oversight had the potential to damage the very considerable levels of credibility that audiences would have placed in a documentary produced by the BBC about the conflict in Gaza."
The film was removed from iPlayer in February after the boy's family links emerged, and in this past July an corporation's own inquiry found it infringed the organization's content policies on factual correctness.
A corporation official said: "The Ofcom ruling is in agreement with the findings of the internal assessment, that there was a major oversight in the documentary in relation to the corporation's content standards on truthfulness, which corresponds to clause 2.2 of the regulator's media standards.
"We issued an apology for this and we agree with Ofcom's decision in full. We will adhere to the penalty as soon as the date and wording are finalised."
