The BBC engaged in a "major breach" of industry standards by failing to disclose that the presenter of a film about Gaza was the son of a Hamas representative, as ruled by UK media regulator Ofcom.
An inquiry by the broadcasting watchdog into the documentary titled Gaza: How to Survive a Warzone has determined that the programme was "significantly deceptive".
The chief executive of the broadcaster had already issued an apology, noting there had been "a significant failing in relation to accuracy".
Ofcom has ordered the broadcaster to broadcast a peak-time statement about its decisions.
"As this represents a major infringement of our regulations, we are directing the broadcaster to transmit a statement of our determinations against it on BBC2 at nine o'clock in the evening, with a date to be determined," the regulator stated.
'Risk to Damage Confidence'
The watchdog's report said: "Our probe found that the documentary's lack of disclosure that the presenter's father occupied a position in the Hamas-run government was substantially inaccurate.
"Consequently that the viewers did not have vital facts which may have been extremely pertinent to their evaluation of the narrator and the content he provided.
"Credibility is at the heart of the bond between a media organization and its public, especially for a national broadcasting corporation such as the British Broadcasting Corporation.
"This oversight had the risk to undermine the exceptionally strong degrees of confidence that the public would have placed in a factual film from the broadcaster about the conflict in Gaza."
The programme was withdrawn from the BBC's streaming service in last February after the boy's personal associations were revealed, and in this past July an corporation's own inquiry determined it infringed the broadcaster's journalistic standards on accuracy.
A BBC spokesperson said: "The authority's determination is in accordance with the conclusions of the internal assessment, that there was a serious error in the programme in relation to the BBC's Editorial Guidelines on factual correctness, which aligns with clause 2.2 of Ofcom's Broadcasting Code.
"We have apologised for this and we comply with the regulator's ruling in full. We will follow the penalty as soon as the timing and wording are confirmed."
