The public service broadcaster committed a "serious breach" of media regulations by not revealing that the presenter of a film about the Gaza conflict was the son of a Hamas administrator, as determined by British broadcasting authority Ofcom.
An probe by Ofcom into the documentary titled Gaza: How to Survive a Warzone has found that the documentary was "materially misleading".
The head of the BBC had previously apologised, noting there had been "a serious error in relation to accuracy".
The regulator has directed the corporation to transmit a prime-time declaration about its decisions.
"As this represents a significant violation of our rules, we are instructing the broadcaster to air a statement of our findings against it on BBC Two at 21:00, with a timing to be determined," the regulator stated.
'Possibility to Undermine Confidence'
The authority's report said: "Our investigation determined that the film's lack of disclosure that the narrator's parent occupied a position in the Hamas-run authority was substantially inaccurate.
"It meant that the public did not have critical information which may have been highly relevant to their judgment of the narrator and the information he shared.
"Confidence is at the core of the relationship between a broadcaster and its audience, especially for a national broadcasting corporation such as the public broadcaster.
"This failing had the risk to undermine the very considerable degrees of confidence that audiences would have invested in a BBC factual programme about the Gaza conflict."
The film was withdrawn from the online platform in the month of February after the boy's family links emerged, and in the month of July an corporation's own inquiry concluded it infringed the organization's editorial guidelines on accuracy.
A BBC spokesperson said: "The Ofcom ruling is in line with the conclusions of the corporation's inquiry, that there was a major oversight in the programme in relation to the BBC's Editorial Guidelines on accuracy, which corresponds to regulation 2.2 of the authority's broadcasting regulations.
"We have apologised for this and we comply with the authority's determination in its entirety. We will comply with the directive as soon as the schedule and wording are finalised."
