The British broadcaster was found to have committed a "significant breach" of media regulations by not revealing that the voice of a programme about the Gaza situation was the son of a Hamas representative, as determined by regulatory body Ofcom.
An inquiry by the media regulator into the programme Gaza: How to Survive a Warzone has concluded that the programme was "materially misleading".
The head of the BBC had already issued an apology, noting there had been "a serious error in relation to factual correctness".
The regulator has ordered the BBC to air a prime-time announcement about its decisions.
"Given this constitutes a serious breach of our code, we are instructing the corporation to transmit a statement of our conclusions against it on the BBC's second channel at nine o'clock in the evening, with a timing to be confirmed," the regulator stated.
'Risk to Undermine Confidence'
The authority's statement said: "Our investigation found that the documentary's failure to disclose that the voice's parent held a post in the Hamas-controlled authority was significantly deceptive.
"Consequently that the audience did not have essential details which may have been very significant to their judgment of the voice and the information he shared.
"Confidence is at the core of the connection between a television network and its audience, particularly for a national broadcasting corporation such as the BBC.
"This failing had the risk to damage the significantly high levels of trust that the public would have put in a factual film from the broadcaster about the conflict in Gaza."
The documentary was removed from iPlayer in last February after the boy's personal associations came to light, and in this past July an internal BBC review found it breached the organization's content policies on truthfulness.
A representative for the broadcaster commented: "The Ofcom ruling is in line with the conclusions of Peter Johnston's review, that there was a major oversight in the programme in relation to the corporation's content standards on accuracy, which corresponds to clause 2.2 of the authority's broadcasting regulations.
"We have apologised for this and we agree with the authority's determination in full. We will follow the directive as soon as the schedule and language are confirmed."
