The British broadcaster committed a "serious breach" of media regulations by not revealing that the narrator of a documentary about Gaza was the offspring of a Hamas official, as ruled by British broadcasting authority Ofcom.
An investigation by the broadcasting watchdog into Gaza: How to Survive a Warzone has concluded that the film was "materially misleading".
The head of the BBC had earlier expressed regret, saying there had been "a significant failing in relation to truthfulness".
The regulator has directed the BBC to air a prime-time announcement about its findings.
"As this represents a major infringement of our regulations, we are instructing the broadcaster to transmit a statement of our determinations against it on the BBC's second channel at nine o'clock in the evening, with a schedule to be determined," the regulator stated.
'Possibility to Damage Confidence'
The watchdog's announcement declared: "The inquiry we conducted concluded that the film's lack of disclosure that the voice's male guardian occupied a role in the Hamas-administered administration was substantially inaccurate.
"Consequently that the audience did not have vital facts which may have been extremely pertinent to their judgment of the presenter and the information he shared.
"Trust is at the core of the connection between a media organization and its audience, notably for a public service broadcaster such as the public broadcaster.
"This oversight had the risk to damage the exceptionally strong degrees of credibility that viewers would have placed in a documentary produced by the BBC about the Gaza conflict."
The programme was pulled from the BBC's streaming service in the month of February after the narrator's family links came to light, and in July an corporation's own inquiry found it violated the organization's content policies on accuracy.
A BBC spokesperson stated: "The regulator's decision is in accordance with the findings of Peter Johnston's review, that there was a major oversight in the documentary in relation to the BBC's Editorial Guidelines on accuracy, which aligns with clause 2.2 of the regulator's media standards.
"We issued an apology for this and we comply with the authority's determination in its entirety. We will follow the directive as soon as the schedule and language are determined."
