The British broadcaster was found to have committed a "significant breach" of broadcasting rules by omitting to mention that the presenter of a documentary about Gaza was the offspring of a Hamas administrator, as ruled by regulatory body Ofcom.
An inquiry 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 previously apologised, saying there had been "a serious error in relation to accuracy".
The authority has instructed the corporation to air a evening declaration about its decisions.
"Given this constitutes a serious breach of our regulations, we are directing the corporation to air a announcement of our determinations against it on BBC2 at 9pm, with a date to be confirmed," it said.
'Potential to Erode Confidence'
The regulator's statement declared: "The inquiry we conducted found that the documentary's failure to disclose that the voice's father occupied a post in the Hamas-run authority was materially misleading.
"It meant that the audience did not have critical information which may have been extremely pertinent to their judgment of the narrator and the information he presented.
"Trust is at the heart of the connection between a television network and its viewers, especially for a national broadcasting corporation such as the British Broadcasting Corporation.
"This error had the potential to erode the exceptionally strong amounts of trust that audiences would have placed in a documentary produced by the BBC about the Gaza conflict."
The programme was pulled from iPlayer in the month of February after the presenter's family links came to light, and in this past July an corporation's own inquiry found it infringed the organization's journalistic standards on truthfulness.
A BBC spokesperson said: "The authority's determination is in agreement with the results of the internal assessment, that there was a major oversight in the programme in relation to the broadcaster's journalistic policies on truthfulness, which corresponds to Rule 2.2 of the authority's broadcasting regulations.
"We expressed regret for this and we comply with the regulator's ruling in complete. We will follow the penalty as soon as the date and wording are confirmed."
