The BBC was found to have committed a "major breach" of broadcasting rules by omitting to mention that the presenter of a documentary about Gaza was the son of a Hamas administrator, as determined by British broadcasting authority Ofcom.
An probe by the media regulator into the programme Gaza: How to Survive a Warzone has determined that the film was "significantly deceptive".
The chief executive of the broadcaster had already issued an apology, stating there had been "a major oversight in relation to truthfulness".
The authority has instructed the BBC to transmit a prime-time announcement about its conclusions.
"As this represents a major infringement of our rules, we are ordering the BBC to broadcast a announcement of our determinations against it on BBC Two at 21:00, with a schedule to be confirmed," the statement read.
'Risk to Damage Trust'
The authority's announcement declared: "Our probe concluded that the film's lack of disclosure that the voice's father served in a role in the Hamas-controlled administration was substantially inaccurate.
"It meant that the viewers did not have critical information which may have been very significant to their evaluation of the presenter and the information he shared.
"Credibility is at the center of the connection between a media organization and its viewers, especially for a national broadcasting corporation such as the BBC.
"This oversight had the possibility to undermine the exceptionally strong degrees of credibility that viewers would have invested in a documentary produced by the BBC about the conflict in Gaza."
The documentary was withdrawn from the online platform in February after the presenter's familial connections emerged, and in the month of July an internal BBC review found it violated the corporation's editorial guidelines on accuracy.
A corporation official commented: "The Ofcom ruling is in line with the results of the internal assessment, that there was a significant failing in the documentary in relation to the broadcaster's journalistic policies on truthfulness, which reflects Rule 2.2 of the authority's broadcasting regulations.
"We issued an apology for this and we comply with Ofcom's decision in complete. We will follow the penalty as soon as the schedule and wording are confirmed."
