The British broadcaster engaged in a "major breach" of media regulations by failing to disclose that the presenter of a film about the Gaza situation was the child of a Hamas administrator, as determined by regulatory body Ofcom.
An inquiry by the broadcasting watchdog into Gaza: How to Survive a Warzone has found that the film was "substantially inaccurate".
The chief executive of the broadcaster had already issued an apology, saying there had been "a significant failing in relation to factual correctness".
The regulator has ordered the BBC to air a prime-time announcement about its conclusions.
"As this represents a significant violation of our regulations, we are instructing the broadcaster to transmit a message of our conclusions against it on BBC2 at 9pm, with a schedule to be confirmed," the statement read.
'Risk to Damage Credibility'
The regulator's announcement declared: "Our investigation determined that the programme's lack of disclosure that the presenter's father held a position in the Hamas-administered authority was significantly deceptive.
"Consequently that the audience did not have critical information which may have been very significant to their assessment of the voice and the content he provided.
"Credibility is at the center of the bond between a broadcaster and its public, notably for a national broadcasting corporation such as the BBC.
"This failing had the potential to undermine the significantly high degrees of confidence that audiences would have placed in a documentary produced by the BBC about the Gaza conflict."
The programme was removed from iPlayer in last February after the presenter's personal associations emerged, and in July an broadcaster's internal assessment found it violated the organization's editorial guidelines on truthfulness.
A corporation official commented: "The authority's determination is in accordance with the conclusions of the internal assessment, that there was a significant failing in the programme in relation to the BBC's Editorial Guidelines on factual correctness, which aligns with Rule 2.2 of the regulator's media standards.
"We issued an apology for this and we comply with the authority's determination in complete. We will comply with the directive as soon as the date and wording are determined."
