The BBC committed a "significant breach" of media regulations by omitting to mention that the presenter of a documentary about the Gaza conflict was the son of a Hamas official, as determined by regulatory body Ofcom.
An investigation by the media regulator into the documentary titled Gaza: How to Survive a Warzone has determined that the documentary was "substantially inaccurate".
The head of the BBC had already issued an apology, stating there had been "a serious error in relation to truthfulness".
Ofcom has instructed the corporation to broadcast a peak-time declaration about its findings.
"As this represents a serious breach of our rules, we are ordering the corporation to air a statement of our findings against it on BBC Two at 21:00, with a timing to be finalised," the statement read.
'Risk to Undermine Confidence'
The regulator's announcement declared: "The inquiry we conducted found that the film's omission to reveal that the narrator's father held a position in the Hamas-administered authority was materially misleading.
"This implied that the audience did not have essential details which may have been extremely pertinent to their assessment of the presenter and the information he provided.
"Credibility is at the core of the relationship between a television network and its public, notably for a public service broadcaster such as the British Broadcasting Corporation.
"This error had the possibility to erode the exceptionally strong levels of confidence that audiences would have invested in a factual film from the broadcaster about the Israel-Gaza war."
The film was pulled from iPlayer in February after the narrator's familial connections emerged, and in this past July an internal BBC review concluded it infringed the broadcaster's editorial guidelines on accuracy.
A representative for the broadcaster commented: "The authority's determination is in accordance with the results of the corporation's inquiry, that there was a serious error in the documentary in relation to the corporation's content standards on accuracy, which reflects regulation 2.2 of Ofcom's Broadcasting Code.
"We expressed regret for this and we agree with Ofcom's decision in complete. We will adhere to the penalty as soon as the date and language are confirmed."
