The BBC was found to have committed a "significant breach" of media regulations by failing to disclose that the presenter of a film about the Gaza conflict was the offspring of a Hamas representative, as determined by British broadcasting authority Ofcom.
An investigation by the media regulator into Gaza: How to Survive a Warzone has determined that the documentary was "substantially inaccurate".
The BBC's director general had already issued an apology, saying there had been "a serious error in relation to truthfulness".
The authority has ordered the broadcaster to air a peak-time announcement about its decisions.
"Given this constitutes a significant violation of our regulations, we are ordering the BBC to transmit a statement of our determinations against it on BBC Two at 21:00, with a schedule to be finalised," the regulator stated.
'Risk to Erode Trust'
The regulator's announcement stated: "Our investigation found that the film's lack of disclosure that the narrator's male guardian occupied a role in the Hamas-controlled administration was significantly deceptive.
"Consequently that the viewers did not have vital facts which may have been highly relevant to their judgment of the presenter and the details he provided.
"Trust is at the center of the bond between a television network and its viewers, particularly for a national broadcasting corporation such as the public broadcaster.
"This error had the potential to damage the exceptionally strong levels of credibility that viewers would have placed in a factual film from the broadcaster about the Gaza conflict."
The film was pulled from iPlayer in last February after the boy's personal associations came to light, and in July an internal BBC review determined it infringed the corporation's content policies on factual correctness.
A corporation official said: "The regulator's decision is in agreement with the conclusions of the internal assessment, that there was a significant failing in the documentary in relation to the BBC's Editorial Guidelines on truthfulness, which reflects Rule 2.2 of the authority's broadcasting regulations.
"We issued an apology for this and we comply with Ofcom's decision in its entirety. We will comply with the directive as soon as the schedule and wording are determined."
