The BBC committed a "significant breach" of industry standards by not revealing that the voice of a film about Gaza was the offspring of a Hamas representative, as determined by UK media regulator Ofcom.
An probe by the broadcasting watchdog into the documentary titled Gaza: How to Survive a Warzone has concluded that the programme was "significantly deceptive".
The head of the BBC had previously apologised, saying there had been "a significant failing in relation to truthfulness".
The regulator has ordered the corporation to broadcast a prime-time statement about its decisions.
"As this represents a serious breach of our rules, we are ordering the broadcaster to transmit a statement of our findings against it on the BBC's second channel at 9pm, with a schedule to be confirmed," the regulator stated.
'Risk to Erode Confidence'
The regulator's statement said: "The inquiry we conducted determined that the programme's failure to disclose that the presenter's parent served in a role in the Hamas-run government was materially misleading.
"This implied that the audience did not have critical information which may have been highly relevant to their assessment of the voice and the details he shared.
"Trust is at the heart of the connection between a television network and its viewers, especially for a state-funded media outlet such as the BBC.
"This oversight had the possibility to erode the very considerable amounts of credibility that viewers would have put in a BBC factual programme about the Israel-Gaza war."
The programme was pulled from the online platform in last February after the presenter's family links came to light, and in the month of July an internal BBC review found it violated the organization's editorial guidelines on truthfulness.
A BBC spokesperson commented: "The Ofcom ruling is in line with the results of Peter Johnston's review, that there was a major oversight in the documentary in relation to the corporation's content standards on truthfulness, which corresponds to regulation 2.2 of the regulator's media standards.
"We expressed regret for this and we agree with the authority's determination in complete. We will follow the directive as soon as the timing and wording are finalised."