The British broadcaster was found to have committed a "significant breach" of broadcasting rules by omitting to mention that the voice of a film about the Gaza conflict was the child of a Hamas representative, as determined by regulatory body Ofcom.
An inquiry by the broadcasting watchdog into the programme Gaza: How to Survive a Warzone has determined that the programme was "significantly deceptive".
The BBC's director general had earlier expressed regret, noting there had been "a significant failing in relation to accuracy".
The authority has directed the BBC to broadcast a prime-time statement about its conclusions.
"Given this constitutes a serious breach of our rules, we are instructing the broadcaster to air a message of our findings against it on BBC2 at nine o'clock in the evening, with a schedule to be confirmed," it said.
'Potential to Damage Confidence'
The authority's report stated: "Our probe found that the documentary's failure to disclose that the presenter's father occupied a position in the Hamas-run government was significantly deceptive.
"It meant that the viewers did not have vital facts which may have been highly relevant to their assessment of the voice and the details he shared.
"Credibility is at the center of the connection between a media organization and its viewers, especially for a public service broadcaster such as the BBC.
"This oversight had the risk to undermine the significantly high levels of trust that viewers would have invested in a documentary produced by the BBC about the Israel-Gaza war."
The programme was pulled from the online platform in last February after the presenter's personal associations came to light, and in this past July an internal BBC review concluded it breached the organization's journalistic standards on factual correctness.
A corporation official said: "The regulator's decision is in agreement with the results of the internal assessment, that there was a major oversight in the film in relation to the broadcaster's journalistic policies on truthfulness, which reflects clause 2.2 of the authority's broadcasting regulations.
"We expressed regret for this and we agree with the regulator's ruling in its entirety. We will follow the directive as soon as the timing and wording are finalised."
