The British broadcaster was found to have committed a "serious breach" of media regulations by failing to disclose that the presenter of a film about Gaza was the child of a Hamas administrator, as determined by UK media regulator Ofcom.
An investigation by the broadcasting watchdog into the documentary titled Gaza: How to Survive a Warzone has concluded that the programme was "significantly deceptive".
The BBC's director general had earlier expressed regret, noting there had been "a significant failing in relation to accuracy".
Ofcom has ordered the corporation to air a prime-time declaration about its findings.
"Since this amounts to a serious breach of our rules, we are directing the broadcaster to broadcast a statement of our findings against it on the BBC's second channel at 21:00, with a schedule to be determined," it said.
'Potential to Undermine Trust'
The regulator's statement stated: "The inquiry we conducted concluded that the film's failure to disclose that the presenter's father held a position in the Hamas-administered authority was materially misleading.
"This implied that the audience did not have critical information which may have been highly relevant to their evaluation of the narrator and the details he presented.
"Confidence is at the center of the relationship between a broadcaster and its public, notably for a public service broadcaster such as the BBC.
"This error had the possibility to damage the exceptionally strong degrees of confidence that the public would have put in a documentary produced by the BBC about the conflict in Gaza."
The documentary was withdrawn from iPlayer in the month of February after the narrator's personal associations were revealed, and in July an broadcaster's internal assessment determined it violated the organization's editorial guidelines on factual correctness.
A representative for the broadcaster stated: "The authority's determination is in accordance with the conclusions of the corporation's inquiry, that there was a significant failing in the documentary in relation to the broadcaster's journalistic policies on factual correctness, which aligns with clause 2.2 of the regulator's media standards.
"We expressed regret for this and we agree with Ofcom's decision in its entirety. We will adhere to the directive as soon as the schedule and wording are determined."
