The BBC was found to have committed a "significant breach" of industry standards by not revealing that the presenter of a programme about the Gaza conflict was the son of a Hamas official, as determined by British broadcasting authority Ofcom.
An probe by the broadcasting watchdog into the documentary titled Gaza: How to Survive a Warzone has concluded that the programme was "substantially inaccurate".
The head of the BBC had earlier expressed regret, noting there had been "a serious error in relation to truthfulness".
The authority has directed the corporation to broadcast a prime-time declaration about its findings.
"Given this constitutes a significant violation of our code, we are directing the broadcaster to transmit a announcement of our conclusions against it on BBC Two at 21:00, with a date to be finalised," the statement read.
'Potential to Undermine Trust'
The authority's report stated: "Our probe concluded that the film's lack of disclosure that the narrator's father held a role in the Hamas-controlled government was significantly deceptive.
"Consequently that the audience did not have essential details which may have been very significant to their judgment of the voice and the content he presented.
"Trust is at the core of the connection between a television network and its public, particularly for a public service broadcaster such as the British Broadcasting Corporation.
"This oversight had the risk to undermine the very considerable levels of confidence that audiences would have placed in a BBC factual programme about the conflict in Gaza."
The programme was pulled from the online platform in the month of February after the narrator's familial connections were revealed, and in the month of July an corporation's own inquiry determined it infringed the broadcaster's journalistic standards on accuracy.
A corporation official commented: "The authority's determination is in accordance with the results of Peter Johnston's review, that there was a major oversight in the documentary in relation to the BBC's Editorial Guidelines on factual correctness, which reflects regulation 2.2 of Ofcom's Broadcasting Code.
"We issued an apology for this and we accept Ofcom's decision in full. We will follow the penalty as soon as the timing and wording are confirmed."
