The British broadcaster engaged in a "serious breach" of media regulations by omitting to mention that the voice of a documentary about the Gaza conflict was the offspring of a Hamas representative, as determined by UK media regulator Ofcom.
An probe by Ofcom into the documentary titled Gaza: How to Survive a Warzone has found that the programme was "significantly deceptive".
The chief executive of the broadcaster had already issued an apology, stating there had been "a serious error in relation to accuracy".
The authority has instructed the broadcaster to transmit a evening statement about its conclusions.
"Given this constitutes a serious breach of our rules, we are instructing the corporation to broadcast a announcement of our conclusions against it on the BBC's second channel at 9pm, with a timing to be confirmed," the statement read.
'Potential to Undermine Credibility'
The authority's report said: "Our investigation determined that the programme's omission to reveal that the narrator's male guardian served in a role in the Hamas-run administration was significantly deceptive.
"Consequently that the viewers did not have vital facts which may have been very significant to their assessment of the presenter and the content he presented.
"Credibility is at the center of the bond between a broadcaster and its audience, particularly for a public service broadcaster such as the British Broadcasting Corporation.
"This error had the possibility to damage the very considerable amounts of trust that the public would have put in a documentary produced by the BBC about the Gaza conflict."
The film was removed from iPlayer in the month of February after the narrator's family links came to light, and in July an internal BBC review found it breached the organization's editorial guidelines on truthfulness.
A representative for the broadcaster commented: "The regulator's decision is in accordance with the results of Peter Johnston's review, that there was a significant failing in the programme in relation to the corporation's content standards on factual correctness, which aligns with clause 2.2 of the regulator's media standards.
"We issued an apology for this and we agree with Ofcom's decision in complete. We will comply with the penalty as soon as the date and language are confirmed."
