The public service broadcaster was found to have committed a "serious breach" of industry standards by failing to disclose that the voice of a film about the Gaza conflict was the son of a Hamas official, as ruled by British broadcasting authority Ofcom.
An inquiry by Ofcom into the documentary titled Gaza: How to Survive a Warzone has determined that the documentary was "substantially inaccurate".
The chief executive of the broadcaster had previously apologised, saying there had been "a major oversight in relation to truthfulness".
The regulator has directed the corporation to broadcast a peak-time announcement about its conclusions.
"As this represents a major infringement of our regulations, we are instructing the BBC to air a announcement of our determinations against it on BBC2 at nine o'clock in the evening, with a date to be confirmed," the statement read.
'Possibility to Damage Credibility'
The authority's statement declared: "Our probe found that the film's lack of disclosure that the voice's male guardian occupied a position in the Hamas-controlled government was significantly deceptive.
"This implied that the viewers did not have vital facts which may have been highly relevant to their evaluation of the presenter and the information he shared.
"Confidence is at the center of the relationship between a television network and its viewers, especially for a public service broadcaster such as the public broadcaster.
"This failing had the risk to undermine the very considerable degrees of confidence that the public would have placed in a BBC factual programme about the Israel-Gaza war."
The film was withdrawn from iPlayer in the month of February after the narrator's family links emerged, and in the month of July an internal BBC review found it violated the organization's content policies on accuracy.
A corporation official said: "The Ofcom ruling is in agreement with the results of the internal assessment, that there was a significant failing in the film in relation to the BBC's Editorial Guidelines on factual correctness, which corresponds to regulation 2.2 of the regulator's media standards.
"We have apologised for this and we comply with the authority's determination in full. We will comply with the penalty as soon as the schedule and wording are finalised."
