The BBC was found to have committed a "serious breach" of media regulations by omitting to mention that the presenter of a film about the Gaza situation was the child of a Hamas administrator, as determined by regulatory body Ofcom.
An probe by the media regulator into the programme Gaza: How to Survive a Warzone has determined that the documentary was "substantially inaccurate".
The BBC's director general had previously apologised, stating there had been "a significant failing in relation to truthfulness".
The regulator has instructed the broadcaster to broadcast a prime-time statement about its conclusions.
"Since this amounts to a significant violation of our regulations, we are directing the broadcaster to broadcast a message of our conclusions against it on BBC Two at nine o'clock in the evening, with a timing to be determined," the statement read.
'Possibility to Erode Trust'
The watchdog's announcement stated: "Our probe found that the documentary's omission to reveal that the presenter's parent occupied a role in the Hamas-controlled government was substantially inaccurate.
"Consequently that the public did not have critical information which may have been highly relevant to their judgment of the presenter and the information he provided.
"Credibility is at the core of the connection between a media organization and its viewers, particularly for a national broadcasting corporation such as the BBC.
"This failing had the potential to damage the exceptionally strong degrees of credibility that viewers would have placed in a documentary produced by the BBC about the Israel-Gaza war."
The documentary was removed from the BBC's streaming service in the month of February after the boy's familial connections came to light, and in this past July an broadcaster's internal assessment found it infringed the organization's journalistic standards on truthfulness.
A corporation official commented: "The regulator's decision is in accordance with the results of Peter Johnston's review, that there was a serious error in the programme in relation to the broadcaster's journalistic policies on truthfulness, which reflects Rule 2.2 of Ofcom's Broadcasting Code.
"We have apologised for this and we agree with Ofcom's decision in complete. We will adhere to the directive as soon as the date and wording are determined."
