The British broadcaster engaged in a "serious breach" of broadcasting rules by omitting to mention that the presenter of a film about the Gaza situation was the son of a Hamas representative, as ruled by British broadcasting authority Ofcom.
An probe by Ofcom into the documentary titled Gaza: How to Survive a Warzone has determined that the film was "substantially inaccurate".
The chief executive of the broadcaster had already issued an apology, noting there had been "a serious error in relation to truthfulness".
The authority has instructed the BBC to broadcast a peak-time statement about its decisions.
"Given this constitutes a serious breach of our regulations, we are directing the BBC to air a message of our conclusions against it on the BBC's second channel at nine o'clock in the evening, with a date to be finalised," the statement read.
'Risk to Undermine Confidence'
The regulator's report declared: "Our investigation concluded that the programme's lack of disclosure that the voice's father served in a position in the Hamas-controlled authority was materially misleading.
"Consequently that the viewers did not have vital facts which may have been extremely pertinent to their judgment of the voice and the details he shared.
"Confidence is at the heart of the connection between a television network and its viewers, notably for a national broadcasting corporation such as the British Broadcasting Corporation.
"This failing had the possibility to damage the very considerable levels of credibility that viewers would have invested in a documentary produced by the BBC about the Gaza conflict."
The programme was pulled from iPlayer in February after the narrator's familial connections emerged, and in the month of July an corporation's own inquiry concluded it infringed the organization's editorial guidelines on truthfulness.
A representative for the broadcaster commented: "The Ofcom ruling is in accordance with the findings of the corporation's inquiry, that there was a significant failing in the documentary in relation to the broadcaster's journalistic policies on factual correctness, which corresponds to regulation 2.2 of the authority's broadcasting regulations.
"We issued an apology for this and we agree with the authority's determination in full. We will comply with the sanction as soon as the schedule and wording are determined."