The BBC was found to have committed a "significant breach" of broadcasting rules by omitting to mention that the presenter of a film about the Gaza conflict was the son of a Hamas representative, as determined by UK media regulator Ofcom.
An investigation by the broadcasting watchdog into Gaza: How to Survive a Warzone has determined that the documentary was "substantially inaccurate".
The head of the BBC had already issued an apology, saying there had been "a significant failing in relation to truthfulness".
The authority has ordered the BBC to broadcast a prime-time statement about its findings.
"Given this constitutes a serious breach of our regulations, we are instructing the broadcaster to air a statement of our determinations against it on BBC2 at 9pm, with a timing to be confirmed," the regulator stated.
'Possibility to Erode Trust'
The authority's statement stated: "Our investigation determined that the programme's lack of disclosure that the presenter's father occupied a role in the Hamas-administered government was substantially inaccurate.
"This implied that the audience did not have critical information which may have been highly relevant to their evaluation of the voice and the information he shared.
"Credibility is at the heart of the connection between a broadcaster and its public, particularly for a national broadcasting corporation such as the British Broadcasting Corporation.
"This error had the potential to damage the exceptionally strong amounts of confidence that the public would have placed in a BBC factual programme about the Gaza conflict."
The documentary was withdrawn from the online platform in last February after the narrator's family links emerged, and in the month of July an internal BBC review found it breached the broadcaster's editorial guidelines on truthfulness.
A corporation official commented: "The Ofcom ruling is in agreement with the conclusions of the corporation's inquiry, that there was a serious error in the programme in relation to the broadcaster's journalistic policies on truthfulness, which corresponds to clause 2.2 of the regulator's media standards.
"We have apologised for this and we accept Ofcom's decision in its entirety. We will adhere to the directive as soon as the timing and wording are finalised."
