The British broadcaster committed a "serious breach" of industry standards by omitting to mention that the presenter of a film about the Gaza situation was the offspring of a Hamas representative, as determined by UK media regulator Ofcom.
An inquiry by the media regulator into the documentary titled Gaza: How to Survive a Warzone has found that the programme was "significantly deceptive".
The BBC's director general had earlier expressed regret, stating there had been "a serious error in relation to accuracy".
The authority has ordered the broadcaster to broadcast a peak-time announcement about its decisions.
"Since this amounts to a significant violation of our regulations, we are instructing the broadcaster to broadcast a announcement of our conclusions against it on BBC2 at nine o'clock in the evening, with a date to be finalised," the regulator stated.
'Potential to Undermine Credibility'
The watchdog's announcement stated: "Our investigation concluded that the film's lack of disclosure that the voice's parent held a position in the Hamas-run administration was materially misleading.
"Consequently that the audience did not have critical information which may have been highly relevant to their assessment of the voice and the information he presented.
"Trust is at the heart of the connection between a broadcaster and its public, notably for a national broadcasting corporation such as the British Broadcasting Corporation.
"This failing had the possibility to erode the very considerable degrees of trust that audiences would have placed in a documentary produced by the BBC about the conflict in Gaza."
The film was pulled from iPlayer in the month of February after the narrator's personal associations were revealed, and in the month of July an corporation's own inquiry found it breached the organization's content policies on accuracy.
A corporation official stated: "The Ofcom ruling is in line with the results of Peter Johnston's review, that there was a serious error in the film in relation to the BBC's Editorial Guidelines on accuracy, which corresponds to regulation 2.2 of the authority's broadcasting regulations.
"We expressed regret for this and we accept the regulator's ruling in its entirety. We will comply with the sanction as soon as the timing and wording are finalised."
