The public service broadcaster engaged in a "serious breach" of industry standards by failing to disclose that the presenter of a film about the Gaza conflict was the offspring of a Hamas administrator, as determined by regulatory body Ofcom.
An investigation by the media regulator into the documentary titled Gaza: How to Survive a Warzone has determined that the documentary was "substantially inaccurate".
The BBC's director general had earlier expressed regret, noting there had been "a significant failing in relation to truthfulness".
The regulator has ordered the corporation to air a peak-time declaration about its decisions.
"As this represents a serious breach of our rules, we are instructing the BBC to transmit a statement of our determinations against it on BBC Two at 21:00, with a timing to be determined," the regulator stated.
'Potential to Erode Credibility'
The regulator's report said: "The inquiry we conducted concluded that the programme's lack of disclosure that the voice's parent occupied a position in the Hamas-run administration was substantially inaccurate.
"This implied that the viewers did not have critical information which may have been extremely pertinent to their assessment of the presenter and the content he presented.
"Confidence is at the center of the bond between a television network and its audience, notably for a national broadcasting corporation such as the public broadcaster.
"This oversight had the risk to undermine the significantly high amounts of confidence that the public would have invested in a documentary produced by the BBC about the Israel-Gaza war."
The film was removed from iPlayer in last February after the narrator's personal associations were revealed, and in the month of July an broadcaster's internal assessment concluded it infringed the corporation's editorial guidelines on truthfulness.
A BBC spokesperson commented: "The Ofcom ruling is in accordance with the results of the corporation's inquiry, that there was a major oversight in the programme in relation to the BBC's Editorial Guidelines on truthfulness, which corresponds to Rule 2.2 of the authority's broadcasting regulations.
"We issued an apology for this and we accept the regulator's ruling in its entirety. We will adhere to the directive as soon as the date and wording are confirmed."
