The British broadcaster engaged in a "major breach" of industry standards by not revealing that the presenter of a programme about Gaza was the child of a Hamas official, as determined by British broadcasting authority Ofcom.
An inquiry by the media regulator into the programme Gaza: How to Survive a Warzone has concluded that the film was "substantially inaccurate".
The BBC's director general had already issued an apology, stating there had been "a major oversight in relation to factual correctness".
Ofcom has ordered the BBC to broadcast a prime-time declaration about its decisions.
"As this represents a major infringement of our code, we are ordering the corporation to broadcast a announcement of our determinations against it on BBC2 at 21:00, with a date to be confirmed," it said.
'Possibility to Damage Credibility'
The watchdog's statement said: "Our probe found that the film's omission to reveal that the narrator's parent held a position in the Hamas-run government was substantially inaccurate.
"This implied that the public did not have critical information which may have been highly relevant to their assessment of the narrator and the information he shared.
"Trust is at the core of the relationship between a broadcaster and its audience, especially for a national broadcasting corporation such as the BBC.
"This failing had the risk to erode the very considerable amounts of confidence that viewers would have invested in a BBC factual programme about the conflict in Gaza."
The programme was removed from the online platform in the month of February after the boy's familial connections emerged, and in this past July an broadcaster's internal assessment determined it breached the organization's editorial guidelines on accuracy.
A BBC spokesperson commented: "The Ofcom ruling is in accordance with the conclusions of the corporation's inquiry, that there was a significant failing in the film in relation to the corporation's content standards on accuracy, which reflects clause 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 adhere to the directive as soon as the date and wording are determined."
