The British broadcaster engaged in a "serious breach" of industry standards by failing to disclose that the voice of a programme about the Gaza conflict was the child of a Hamas administrator, as determined by British broadcasting authority Ofcom.
An investigation by the media regulator into the documentary titled Gaza: How to Survive a Warzone has concluded that the programme was "materially misleading".
The head of the BBC had previously apologised, saying there had been "a significant failing in relation to truthfulness".
The regulator has directed the corporation to broadcast a prime-time announcement about its findings.
"As this represents a major infringement of our code, we are directing the broadcaster to transmit a announcement of our findings against it on the BBC's second channel at 9pm, with a date to be determined," the statement read.
'Potential to Erode Trust'
The watchdog's statement stated: "Our probe concluded that the programme's failure to disclose that the presenter's father held a position in the Hamas-controlled authority was substantially inaccurate.
"This implied that the viewers did not have essential details which may have been very significant to their judgment of the voice and the details he provided.
"Confidence is at the heart of the relationship between a media organization and its audience, particularly for a national broadcasting corporation such as the British Broadcasting Corporation.
"This error had the possibility to damage the significantly high levels of credibility that audiences would have invested in a BBC factual programme about the conflict in Gaza."
The film was pulled from the online platform in last February after the narrator's familial connections were revealed, and in the month of July an corporation's own inquiry concluded it infringed the corporation's editorial guidelines on accuracy.
A corporation official commented: "The Ofcom ruling is in accordance with the findings of Peter Johnston's review, that there was a significant failing in the programme in relation to the BBC's Editorial Guidelines on truthfulness, which corresponds to Rule 2.2 of Ofcom's Broadcasting Code.
"We have apologised for this and we accept Ofcom's decision in full. We will follow the sanction as soon as the schedule and language are confirmed."
