The British broadcaster committed a "serious breach" of media regulations by omitting to mention that the presenter of a documentary about the Gaza conflict was the child of a Hamas administrator, as determined by British broadcasting authority Ofcom.
An inquiry by the broadcasting watchdog into the programme Gaza: How to Survive a Warzone has concluded that the documentary was "significantly deceptive".
The head of the BBC had previously apologised, stating there had been "a major oversight in relation to factual correctness".
Ofcom has ordered the broadcaster to air a peak-time declaration about its decisions.
"Given this constitutes a serious breach of our rules, we are ordering the BBC to broadcast a announcement of our determinations against it on BBC2 at 21:00, with a schedule to be confirmed," the statement read.
'Possibility to Undermine Trust'
The watchdog's report stated: "Our investigation determined that the film's lack of disclosure that the presenter's father held a position in the Hamas-run authority was materially misleading.
"Consequently that the public did not have critical information which may have been highly relevant to their judgment of the narrator and the content he shared.
"Credibility is at the core of the connection between a television network and its audience, particularly for a national broadcasting corporation such as the BBC.
"This failing had the risk to damage the very considerable degrees of credibility that audiences would have placed in a BBC factual programme about the Gaza conflict."
The film was removed from iPlayer in the month of February after the narrator's personal associations were revealed, and in July an internal BBC review found it violated the broadcaster's journalistic standards on factual correctness.
A BBC spokesperson stated: "The regulator's decision is in agreement with the findings of the corporation's inquiry, that there was a serious error in the film in relation to the BBC's Editorial Guidelines on factual correctness, which reflects clause 2.2 of Ofcom's Broadcasting Code.
"We expressed regret for this and we accept the authority's determination in its entirety. We will follow the directive as soon as the timing and language are confirmed."
