The BBC was found to have committed a "serious breach" of industry standards by omitting to mention that the presenter of a programme about the Gaza situation was the offspring of a Hamas representative, as determined by UK media regulator Ofcom.
An investigation by Ofcom into Gaza: How to Survive a Warzone has found that the documentary was "significantly deceptive".
The head of the BBC had previously apologised, noting there had been "a significant failing in relation to factual correctness".
The authority has instructed the broadcaster to transmit a evening declaration about its findings.
"As this represents a serious breach of our regulations, we are ordering the corporation to air a announcement of our conclusions against it on BBC Two at 9pm, with a schedule to be finalised," the statement read.
'Possibility to Erode Confidence'
The regulator's announcement declared: "Our probe determined that the programme's omission to reveal that the presenter's male guardian served in a position in the Hamas-controlled government was materially misleading.
"It meant that the viewers did not have critical information which may have been extremely pertinent to their assessment of the presenter and the content he presented.
"Trust is at the center of the relationship between a media organization and its viewers, particularly for a state-funded media outlet such as the public broadcaster.
"This failing had the risk to undermine the significantly high amounts of trust that viewers would have placed in a factual film from the broadcaster about the conflict in Gaza."
The film was withdrawn from the online platform in the month of February after the narrator's familial connections emerged, and in July an broadcaster's internal assessment concluded it breached the organization's content policies on factual correctness.
A corporation official commented: "The authority's determination is in agreement with the conclusions of Peter Johnston's review, that there was a major oversight in the programme in relation to the corporation's content standards on factual correctness, which aligns with Rule 2.2 of the authority's broadcasting regulations.
"We expressed regret for this and we accept Ofcom's decision in full. We will adhere to the directive as soon as the timing and wording are confirmed."
