The public service broadcaster engaged in a "significant breach" of media regulations by omitting to mention that the voice of a documentary about the Gaza situation was the son of a Hamas administrator, as ruled by British broadcasting authority Ofcom.
An investigation by the broadcasting watchdog into Gaza: How to Survive a Warzone has found that the programme was "significantly deceptive".
The head of the BBC had earlier expressed regret, noting there had been "a serious error in relation to accuracy".
Ofcom has ordered the broadcaster to air a prime-time statement about its findings.
"Since this amounts to a major infringement of our code, we are instructing the BBC to broadcast a announcement of our findings against it on BBC Two at 9pm, with a schedule to be determined," it said.
'Potential to Undermine Confidence'
The authority's report said: "Our investigation concluded that the documentary's lack of disclosure that the narrator's father occupied a position in the Hamas-controlled administration was materially misleading.
"Consequently that the audience did not have essential details which may have been very significant to their judgment of the voice and the content he presented.
"Credibility is at the heart of the relationship between a media organization and its audience, particularly for a public service broadcaster such as the British Broadcasting Corporation.
"This failing had the risk to undermine the exceptionally strong degrees of credibility that audiences would have invested in a documentary produced by the BBC about the Gaza conflict."
The documentary was pulled from the online platform in last February after the presenter's familial connections were revealed, and in the month of July an internal BBC review found it violated the organization's journalistic standards on accuracy.
A representative for the broadcaster stated: "The Ofcom ruling is in agreement with the results of the internal assessment, that there was a serious error in the film in relation to the BBC's Editorial Guidelines on truthfulness, which corresponds to Rule 2.2 of the regulator's media standards.
"We expressed regret for this and we accept the regulator's ruling in full. We will adhere to the directive as soon as the timing and wording are determined."
