The British broadcaster was found to have committed a "serious breach" of industry standards by not revealing that the presenter of a documentary about Gaza was the offspring of a Hamas official, as ruled by regulatory body Ofcom.
An investigation by Ofcom into the programme Gaza: How to Survive a Warzone has found that the film was "significantly deceptive".
The head of the BBC had already issued an apology, saying there had been "a significant failing in relation to accuracy".
The authority has directed the broadcaster to air a prime-time statement about its decisions.
"As this represents a serious breach of our code, we are ordering the corporation to broadcast a announcement of our findings against it on the BBC's second channel at 9pm, with a schedule to be finalised," the statement read.
'Risk to Damage Trust'
The watchdog's statement declared: "The inquiry we conducted found that the documentary's failure to disclose that the narrator's parent held a post in the Hamas-controlled government was materially misleading.
"This implied that the viewers did not have essential details which may have been highly relevant to their judgment of the narrator and the content he shared.
"Trust is at the center of the bond between a broadcaster and its audience, especially for a national broadcasting corporation such as the British Broadcasting Corporation.
"This error had the possibility to undermine the exceptionally strong levels of trust that the public would have placed in a documentary produced by the BBC about the Israel-Gaza war."
The film was pulled from the BBC's streaming service in the month of February after the narrator's family links came to light, and in the month of July an broadcaster's internal assessment found it infringed the organization's editorial guidelines on factual correctness.
A representative for the broadcaster said: "The Ofcom ruling is in agreement with the results of Peter Johnston's review, that there was a serious error in the film in relation to the corporation's content standards on accuracy, which corresponds to clause 2.2 of the regulator's media standards.
"We issued an apology for this and we accept the authority's determination in full. We will comply with the penalty as soon as the schedule and wording are confirmed."
