The British broadcaster was found to have committed a "major breach" of media regulations by failing to disclose that the presenter of a programme about the Gaza conflict was the child of a Hamas administrator, as determined by UK media regulator Ofcom.
An probe by the broadcasting watchdog into the documentary titled Gaza: How to Survive a Warzone has found that the programme was "materially misleading".
The chief executive of the broadcaster had earlier expressed regret, saying there had been "a serious error in relation to truthfulness".
Ofcom has directed the corporation to air a prime-time declaration about its decisions.
"Since this amounts to a serious breach of our regulations, we are ordering the BBC to air a message of our conclusions against it on BBC Two at nine o'clock in the evening, with a schedule to be finalised," the regulator stated.
'Potential to Undermine Confidence'
The regulator's announcement stated: "The inquiry we conducted found that the film's lack of disclosure that the voice's father held a post in the Hamas-controlled authority was materially misleading.
"This implied that the viewers did not have essential details which may have been very significant to their judgment of the voice and the details he presented.
"Credibility is at the core of the bond between a media organization and its public, notably for a national broadcasting corporation such as the public broadcaster.
"This oversight had the potential to undermine the exceptionally strong levels of credibility that the public would have put in a factual film from the broadcaster about the Gaza conflict."
The film was pulled from iPlayer in last February after the presenter's family links emerged, and in July an corporation's own inquiry concluded it violated the corporation's journalistic standards on factual correctness.
A representative for the broadcaster stated: "The authority's determination is in accordance with the conclusions of Peter Johnston's review, that there was a serious error in the programme in relation to the broadcaster's journalistic policies on accuracy, which aligns with regulation 2.2 of the authority's broadcasting regulations.
"We issued an apology for this and we accept Ofcom's decision in full. We will comply with the directive as soon as the timing and wording are finalised."