The British broadcaster committed a "serious breach" of broadcasting rules by omitting to mention that the presenter of a documentary about the Gaza conflict was the son of a Hamas administrator, as determined by regulatory body Ofcom.
An probe by the broadcasting watchdog into the programme Gaza: How to Survive a Warzone has found that the film was "significantly deceptive".
The head of the BBC had already issued an apology, noting there had been "a significant failing in relation to truthfulness".
Ofcom has ordered the BBC to broadcast a prime-time announcement about its findings.
"As this represents a major infringement of our code, we are ordering the corporation to air a announcement of our determinations against it on BBC2 at 9pm, with a timing to be determined," it said.
'Risk to Undermine Trust'
The authority's statement declared: "The inquiry we conducted concluded that the documentary's failure to disclose that the narrator's father occupied a position in the Hamas-administered government was significantly deceptive.
"This implied that the viewers did not have vital facts which may have been very significant to their evaluation of the voice and the details he presented.
"Confidence is at the center of the connection between a media organization and its audience, especially for a state-funded media outlet such as the public broadcaster.
"This oversight had the potential to undermine the exceptionally strong amounts of credibility that the public would have placed in a factual film from the broadcaster about the Israel-Gaza war."
The documentary was pulled from the BBC's streaming service in the month of February after the presenter's personal associations were revealed, and in the month of July an broadcaster's internal assessment found it violated the corporation's content policies on accuracy.
A representative for the broadcaster commented: "The regulator's decision is in agreement with the results of the internal assessment, that there was a serious error in the film in relation to the broadcaster's journalistic policies on factual correctness, which reflects Rule 2.2 of Ofcom's Broadcasting Code.
"We issued an apology for this and we comply with the regulator's ruling in its entirety. We will follow the directive as soon as the date and wording are finalised."
