The British broadcaster was found to have committed a "significant breach" of industry standards by failing to disclose that the narrator of a documentary about the Gaza situation was the child of a Hamas official, as determined by British broadcasting authority Ofcom.
An inquiry by the media regulator into Gaza: How to Survive a Warzone has determined that the documentary was "materially misleading".
The chief executive of the broadcaster had earlier expressed regret, saying there had been "a serious error in relation to accuracy".
Ofcom has instructed the corporation to air a prime-time announcement about its conclusions.
"Since this amounts to a major infringement of our regulations, we are instructing the BBC to broadcast a announcement of our findings against it on BBC2 at 9pm, with a timing to be confirmed," the statement read.
'Potential to Undermine Credibility'
The watchdog's report said: "Our probe found that the programme's lack of disclosure that the voice's male guardian served in a role in the Hamas-controlled authority was materially misleading.
"It meant that the audience did not have critical information which may have been extremely pertinent to their evaluation of the presenter and the information he shared.
"Trust is at the center of the bond between a media organization and its audience, especially for a state-funded media outlet such as the public broadcaster.
"This failing had the possibility to erode the exceptionally strong degrees of trust that viewers would have put in a documentary produced by the BBC about the conflict in Gaza."
The film was pulled from the online platform in last February after the boy's personal associations came to light, and in July an broadcaster's internal assessment concluded it breached the corporation's editorial guidelines on truthfulness.
A representative for the broadcaster commented: "The authority's determination is in line with the conclusions of Peter Johnston's review, that there was a major oversight in the programme in relation to the broadcaster's journalistic policies on truthfulness, which aligns with regulation 2.2 of the authority's broadcasting regulations.
"We expressed regret for this and we agree with the authority's determination in full. We will adhere to the directive as soon as the schedule and wording are determined."
