The British broadcaster was found to have committed a "significant breach" of industry standards by omitting to mention that the voice of a programme about the Gaza situation 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 documentary was "materially misleading".
The head of the BBC had previously apologised, saying there had been "a major oversight in relation to truthfulness".
The authority has ordered the corporation to transmit a prime-time declaration about its findings.
"Given this constitutes a major infringement of our regulations, we are directing the broadcaster to transmit a statement of our findings against it on the BBC's second channel at 21:00, with a schedule to be finalised," the statement read.
'Potential to Damage Confidence'
The regulator's report stated: "Our probe concluded that the documentary's lack of disclosure that the narrator's parent held a role in the Hamas-controlled authority was substantially inaccurate.
"This implied that the viewers did not have vital facts which may have been extremely pertinent to their assessment of the narrator and the details he presented.
"Credibility is at the center of the relationship between a television network and its audience, particularly for a state-funded media outlet such as the public broadcaster.
"This error had the risk to undermine the significantly high levels of trust that viewers would have put in a documentary produced by the BBC about the conflict in Gaza."
The programme was pulled from the online platform in last February after the narrator's personal associations came to light, and in the month of July an internal BBC review found it breached the broadcaster's content policies on factual correctness.
A representative for the broadcaster said: "The Ofcom ruling is in line with the results of the corporation's inquiry, that there was a serious error in the film in relation to the corporation's content standards on truthfulness, which aligns with Rule 2.2 of the regulator's media standards.
"We expressed regret for this and we comply with the regulator's ruling in full. We will adhere to the directive as soon as the schedule and language are confirmed."
