The British broadcaster engaged in a "serious breach" of broadcasting rules by failing to disclose that the voice of a documentary about the Gaza conflict was the child of a Hamas representative, as ruled by British broadcasting authority Ofcom.
An investigation by Ofcom into Gaza: How to Survive a Warzone has found that the film was "significantly deceptive".
The chief executive of the broadcaster had already issued an apology, noting there had been "a serious error in relation to accuracy".
Ofcom has directed the corporation to air a peak-time statement about its decisions.
"As this represents a major infringement of our rules, we are instructing the BBC to transmit a announcement of our conclusions against it on BBC2 at nine o'clock in the evening, with a date to be determined," it said.
'Possibility to Undermine Trust'
The regulator's report said: "Our probe determined that the film's failure to disclose that the presenter's father served in a post in the Hamas-controlled authority was substantially inaccurate.
"This implied that the audience did not have vital facts which may have been highly relevant to their assessment of the voice and the content he presented.
"Trust is at the heart of the connection between a television network and its viewers, notably for a public service broadcaster such as the British Broadcasting Corporation.
"This failing had the potential to erode the significantly high degrees of credibility that audiences would have put in a BBC factual programme about the conflict in Gaza."
The documentary was removed from the BBC's streaming service in last February after the narrator's personal associations came to light, and in the month of July an broadcaster's internal assessment determined it breached 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 the corporation's inquiry, that there was a serious error in the film in relation to the corporation's content standards on truthfulness, which corresponds to Rule 2.2 of the authority's broadcasting regulations.
"We expressed regret for this and we comply with the authority's determination in full. We will follow the penalty as soon as the schedule and language are confirmed."
