The BBC engaged in a "major breach" of industry standards by not revealing that the voice of a documentary about Gaza was the offspring of a Hamas representative, as determined by UK media regulator Ofcom.
An probe by the media regulator into the documentary titled Gaza: How to Survive a Warzone has determined that the film was "materially misleading".
The BBC's director general had earlier expressed regret, noting there had been "a serious error in relation to accuracy".
The authority has directed the BBC to broadcast a evening declaration about its findings.
"Since this amounts to a major infringement of our rules, we are ordering the corporation to broadcast a announcement of our determinations against it on the BBC's second channel at nine o'clock in the evening, with a schedule to be confirmed," the regulator stated.
'Potential to Undermine Trust'
The authority's statement stated: "Our investigation concluded that the documentary's lack of disclosure that the narrator's male guardian held a post in the Hamas-controlled authority was significantly deceptive.
"It meant that the viewers did not have essential details which may have been highly relevant to their judgment of the narrator and the details he shared.
"Trust is at the center of the relationship between a television network and its viewers, notably for a national broadcasting corporation such as the public broadcaster.
"This failing had the possibility to erode the very considerable levels of trust that audiences would have placed in a BBC factual programme about the Gaza conflict."
The programme was pulled from the online platform in last February after the boy's familial connections emerged, and in the month of July an broadcaster's internal assessment found it breached the organization's journalistic standards on truthfulness.
A BBC spokesperson said: "The Ofcom ruling is in line with the conclusions of Peter Johnston's review, that there was a major oversight in the film in relation to the broadcaster's journalistic policies on factual correctness, which corresponds to Rule 2.2 of the authority's broadcasting regulations.
"We issued an apology for this and we agree with Ofcom's decision in complete. We will adhere to the directive as soon as the timing and wording are confirmed."
