The British broadcaster committed a "major breach" of broadcasting rules by failing to disclose that the narrator of a programme about Gaza was the offspring of a Hamas administrator, as determined by British broadcasting authority Ofcom.
An probe by the broadcasting watchdog into the documentary titled Gaza: How to Survive a Warzone has concluded that the film was "significantly deceptive".
The BBC's director general had previously apologised, noting there had been "a significant failing in relation to truthfulness".
The authority has instructed the BBC to transmit a peak-time announcement about its decisions.
"Given this constitutes a major infringement of our regulations, we are directing the BBC to air a announcement of our determinations against it on BBC2 at 21:00, with a date to be determined," the regulator stated.
'Risk to Erode Trust'
The regulator's announcement declared: "The inquiry we conducted concluded that the film's failure to disclose that the presenter's male guardian served in a post in the Hamas-administered authority was substantially inaccurate.
"It meant that the public did not have critical information which may have been extremely pertinent to their judgment of the presenter and the details he provided.
"Trust is at the core of the bond between a broadcaster and its viewers, especially for a national broadcasting corporation such as the British Broadcasting Corporation.
"This error had the potential to erode the significantly high degrees of trust that the public would have placed in a BBC factual programme about the Israel-Gaza war."
The film was pulled from the BBC's streaming service in last February after the narrator's family links were revealed, and in July an corporation's own inquiry concluded it infringed the broadcaster's editorial guidelines on accuracy.
A corporation official said: "The authority's determination is in agreement with the results of the internal assessment, that there was a significant failing in the film in relation to the corporation's content standards on factual correctness, which reflects clause 2.2 of the regulator's media standards.
"We have apologised for this and we comply with Ofcom's decision in full. We will adhere to the penalty as soon as the date and wording are confirmed."
