The BBC was found to have committed a "major breach" of media regulations by omitting to mention that the presenter of a programme about Gaza was the son of a Hamas representative, as ruled by British broadcasting authority Ofcom.
An investigation by the media regulator into the programme Gaza: How to Survive a Warzone has concluded that the documentary was "materially misleading".
The head of the BBC had previously apologised, stating there had been "a major oversight in relation to truthfulness".
The regulator has instructed the BBC to transmit a prime-time announcement about its findings.
"As this represents a significant violation of our regulations, we are instructing the broadcaster to transmit a announcement of our determinations against it on the BBC's second channel at nine o'clock in the evening, with a timing to be finalised," the statement read.
'Potential to Erode Confidence'
The authority's announcement said: "Our probe found that the programme's lack of disclosure that the narrator's father occupied a role in the Hamas-administered authority was significantly deceptive.
"Consequently that the viewers did not have critical information which may have been very significant to their assessment of the narrator and the content he provided.
"Trust is at the heart of the relationship between a television network and its viewers, especially for a state-funded media outlet such as the British Broadcasting Corporation.
"This failing had the possibility to undermine the exceptionally strong levels of confidence that viewers would have invested in a documentary produced by the BBC about the conflict in Gaza."
The film was pulled from the online platform in the month of February after the boy's family links were revealed, and in this past July an internal BBC review determined it violated the broadcaster's journalistic standards on factual correctness.
A corporation official commented: "The Ofcom ruling is in agreement with the conclusions of the corporation's inquiry, that there was a significant failing in the programme in relation to the BBC's Editorial Guidelines on factual correctness, which reflects Rule 2.2 of the authority's broadcasting regulations.
"We have apologised for this and we accept the regulator's ruling in its entirety. We will follow the sanction as soon as the date and language are finalised."
