The British broadcaster engaged in a "major breach" of broadcasting rules by not revealing that the voice of a film about the Gaza conflict was the offspring of a Hamas official, as ruled by British broadcasting authority Ofcom.
An probe by the broadcasting watchdog into the programme Gaza: How to Survive a Warzone has found that the programme was "materially misleading".
The head of the BBC had already issued an apology, noting there had been "a major oversight in relation to accuracy".
Ofcom has ordered the BBC to transmit a evening announcement about its decisions.
"Since this amounts to a major infringement of our rules, we are instructing the corporation to broadcast a announcement of our findings against it on the BBC's second channel at 9pm, with a timing to be finalised," the regulator stated.
'Potential to Undermine Credibility'
The regulator's statement declared: "The inquiry we conducted concluded that the programme's lack of disclosure that the presenter's parent served in a role in the Hamas-administered authority was substantially inaccurate.
"This implied that the viewers did not have critical information which may have been very significant to their judgment of the voice and the content he presented.
"Confidence is at the center of the relationship between a broadcaster and its public, especially for a state-funded media outlet such as the British Broadcasting Corporation.
"This oversight had the potential to erode the very considerable amounts of confidence that viewers would have invested in a factual film from the broadcaster about the Gaza conflict."
The programme was withdrawn from iPlayer in February after the presenter's familial connections emerged, and in this past July an internal BBC review determined it breached the organization's content policies on accuracy.
A BBC spokesperson stated: "The regulator's decision is in accordance with the findings of the corporation's inquiry, that there was a significant failing in the documentary in relation to the corporation's content standards on truthfulness, which aligns with regulation 2.2 of the regulator's media standards.
"We expressed regret for this and we comply with the authority's determination in complete. We will comply with the penalty as soon as the timing and wording are confirmed."
