The BBC was found to have committed a "major breach" of industry standards by omitting to mention that the voice of a documentary about the Gaza conflict was the offspring of a Hamas representative, as determined by regulatory body Ofcom.
An probe by the media regulator into the programme Gaza: How to Survive a Warzone has concluded that the film was "substantially inaccurate".
The chief executive of the broadcaster had already issued an apology, saying there had been "a major oversight in relation to truthfulness".
Ofcom has instructed the broadcaster to air a peak-time statement about its findings.
"Since this amounts to a serious breach of our code, we are directing the BBC to air a message of our findings against it on the BBC's second channel at 9pm, with a date to be finalised," the statement read.
'Potential to Erode Confidence'
The watchdog's statement declared: "Our probe concluded that the programme's omission to reveal that the narrator's parent held a position in the Hamas-administered authority was substantially inaccurate.
"Consequently that the viewers did not have critical information which may have been highly relevant to their evaluation of the voice and the information he presented.
"Credibility is at the core of the bond between a broadcaster and its public, notably for a public service broadcaster such as the BBC.
"This oversight had the possibility to undermine the very considerable amounts of confidence that audiences would have placed in a BBC factual programme about the Israel-Gaza war."
The programme was pulled from the online platform in February after the presenter's personal associations came to light, and in the month of July an internal BBC review determined it breached the broadcaster's journalistic standards on factual correctness.
A BBC spokesperson stated: "The authority's determination is in agreement with the results of the internal assessment, that there was a serious error in the documentary in relation to the corporation's content standards on truthfulness, which reflects clause 2.2 of the regulator's media standards.
"We expressed regret for this and we accept the regulator's ruling in complete. We will follow the sanction as soon as the schedule and wording are confirmed."
