The British broadcaster committed a "significant breach" of broadcasting rules by omitting to mention that the narrator of a film about the Gaza situation was the son of a Hamas administrator, as ruled by UK media regulator Ofcom.
An inquiry by Ofcom into the programme Gaza: How to Survive a Warzone has found that the programme was "significantly deceptive".
The chief executive of the broadcaster had earlier expressed regret, saying there had been "a serious error in relation to accuracy".
Ofcom has instructed the corporation to broadcast a prime-time declaration about its decisions.
"As this represents a serious breach of our regulations, we are instructing the BBC to transmit a announcement of our determinations against it on BBC Two at nine o'clock in the evening, with a date to be determined," the statement read.
'Possibility to Undermine Confidence'
The watchdog's announcement said: "Our investigation determined that the documentary's failure to disclose that the presenter's father served in a role in the Hamas-administered government was materially misleading.
"This implied that the audience did not have essential details which may have been highly relevant to their assessment of the narrator and the content he provided.
"Credibility is at the center of the bond between a television network and its public, especially for a national broadcasting corporation such as the public broadcaster.
"This oversight had the potential to damage the significantly high degrees of trust that the public would have invested in a documentary produced by the BBC about the conflict in Gaza."
The film was withdrawn from the BBC's streaming service in last February after the boy's familial connections emerged, and in the month of July an broadcaster's internal assessment concluded it infringed the corporation's content policies on factual correctness.
A corporation official stated: "The Ofcom ruling is in agreement with the results of the corporation's inquiry, that there was a significant failing in the programme in relation to the broadcaster's journalistic policies on factual correctness, which reflects regulation 2.2 of the authority's broadcasting regulations.
"We expressed regret for this and we comply with Ofcom's decision in full. We will comply with the directive as soon as the timing and language are determined."
