The British broadcaster was found to have committed a "serious breach" of broadcasting rules by failing to disclose that the voice of a film about the Gaza conflict was the offspring of a Hamas official, as ruled by British broadcasting authority Ofcom.
An investigation by Ofcom into the programme Gaza: How to Survive a Warzone has determined that the documentary was "substantially inaccurate".
The BBC's director general had already issued an apology, noting there had been "a significant failing in relation to factual correctness".
The regulator has directed the BBC to air a peak-time announcement about its decisions.
"Given this constitutes a major infringement of our regulations, we are ordering the BBC to broadcast a announcement of our conclusions against it on the BBC's second channel at nine o'clock in the evening, with a timing to be confirmed," it said.
'Potential to Damage Credibility'
The regulator's report stated: "Our investigation found that the programme's failure to disclose that the narrator's parent occupied a position in the Hamas-controlled administration was materially misleading.
"This implied that the audience did not have vital facts which may have been highly relevant to their evaluation of the narrator and the content he shared.
"Confidence is at the core of the relationship between a television network and its public, especially for a state-funded media outlet such as the British Broadcasting Corporation.
"This error had the potential to undermine the exceptionally strong 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 the month of February after the boy's personal associations emerged, and in July an corporation's own inquiry concluded it infringed the broadcaster's journalistic standards on factual correctness.
A BBC spokesperson commented: "The authority's determination is in line with the results of the corporation's inquiry, that there was a serious error in the documentary in relation to the broadcaster's journalistic policies on factual correctness, which corresponds to Rule 2.2 of the authority's broadcasting regulations.
"We have apologised for this and we accept Ofcom's decision in full. We will follow the directive as soon as the timing and language are finalised."
