The British broadcaster committed a "significant breach" of media regulations by failing to disclose that the presenter of a documentary about the Gaza situation was the child of a Hamas official, as ruled by regulatory body Ofcom.
An investigation by Ofcom into the documentary titled Gaza: How to Survive a Warzone has concluded that the programme was "substantially inaccurate".
The BBC's director general had previously apologised, stating there had been "a serious error in relation to accuracy".
Ofcom has ordered the BBC to transmit a peak-time announcement about its decisions.
"Since this amounts to a major infringement of our rules, we are ordering the broadcaster to transmit a message of our determinations against it on BBC Two at 21:00, with a timing to be finalised," the regulator stated.
'Risk to Undermine Confidence'
The watchdog's statement declared: "Our investigation concluded that the programme's lack of disclosure that the narrator's father held a role in the Hamas-administered authority was materially misleading.
"It meant that the viewers did not have critical information which may have been very significant to their assessment of the presenter and the content he provided.
"Credibility is at the core of the connection between a broadcaster and its audience, especially for a state-funded media outlet such as the public broadcaster.
"This failing had the potential to undermine the significantly high levels of confidence that viewers would have invested in a BBC factual programme about the Gaza conflict."
The film was removed from iPlayer in February after the narrator's personal associations emerged, and in July an corporation's own inquiry determined it breached the organization's journalistic standards on factual correctness.
A corporation official said: "The regulator's decision is in agreement with the conclusions of Peter Johnston's review, that there was a major oversight in the film in relation to the broadcaster's journalistic policies on factual correctness, which aligns with clause 2.2 of the authority's broadcasting regulations.
"We issued an apology for this and we comply with Ofcom's decision in its entirety. We will follow the directive as soon as the date and language are determined."
