The British broadcaster engaged in a "serious breach" of broadcasting rules by failing to disclose that the presenter of a film about the Gaza conflict was the son of a Hamas representative, as ruled by UK media regulator Ofcom.
An investigation by the media regulator into Gaza: How to Survive a Warzone has found that the film was "substantially inaccurate".
The head of the BBC had already issued an apology, stating there had been "a serious error in relation to truthfulness".
The authority has ordered the broadcaster to air a prime-time statement about its decisions.
"Given this constitutes a major infringement of our code, we are instructing the broadcaster to air a message of our determinations against it on BBC Two at nine o'clock in the evening, with a date to be finalised," the statement read.
'Potential to Erode Confidence'
The watchdog's announcement declared: "Our investigation concluded that the programme's omission to reveal that the presenter's male guardian served in a post in the Hamas-run administration was substantially inaccurate.
"This implied that the viewers did not have critical information which may have been very significant to their judgment of the narrator and the details he provided.
"Trust is at the center of the connection between a television network and its viewers, notably for a public service broadcaster such as the British Broadcasting Corporation.
"This error had the possibility to erode the very considerable amounts of confidence that audiences would have put in a documentary produced by the BBC about the Israel-Gaza war."
The film was pulled from the online platform in February after the boy's familial connections came to light, and in July an corporation's own inquiry found it breached the organization's editorial guidelines on truthfulness.
A BBC spokesperson stated: "The Ofcom ruling is in accordance with the conclusions of the corporation's inquiry, that there was a significant failing in the documentary in relation to the corporation's content standards on accuracy, which corresponds to clause 2.2 of the authority's broadcasting regulations.
"We issued an apology for this and we agree with the authority's determination in its entirety. We will follow the directive as soon as the timing and language are finalised."
