The British broadcaster committed a "major breach" of broadcasting rules by omitting to mention that the presenter of a programme about the Gaza situation was the offspring of a Hamas representative, as ruled by British broadcasting authority Ofcom.
An probe by the media regulator into the programme Gaza: How to Survive a Warzone has concluded that the documentary was "substantially inaccurate".
The BBC's director general had already issued an apology, noting there had been "a major oversight in relation to factual correctness".
The regulator has instructed the broadcaster to broadcast a evening announcement about its decisions.
"As this represents a serious breach of our regulations, we are instructing the BBC to air a message of our findings against it on BBC Two at 9pm, with a date to be determined," the statement read.
'Potential to Damage Credibility'
The regulator's announcement declared: "The inquiry we conducted concluded that the programme's omission to reveal that the voice's male guardian served in a position in the Hamas-controlled authority was materially misleading.
"It meant that the audience did not have essential details which may have been very significant to their assessment of the voice and the information he shared.
"Confidence is at the center of the bond between a television network and its audience, particularly for a state-funded media outlet such as the British Broadcasting Corporation.
"This oversight had the risk to undermine the exceptionally strong levels of confidence that viewers would have placed in a factual film from the broadcaster about the Israel-Gaza war."
The programme was pulled from the online platform in February after the presenter's familial connections were revealed, and in July an broadcaster's internal assessment determined it infringed the organization's editorial guidelines on factual correctness.
A representative for the broadcaster commented: "The authority's determination is in accordance with the findings of Peter Johnston's review, that there was a major oversight in the documentary in relation to the BBC's Editorial Guidelines on truthfulness, which corresponds to regulation 2.2 of Ofcom's Broadcasting Code.
"We have apologised for this and we accept the regulator's ruling in full. We will adhere to the directive as soon as the timing and wording are finalised."
