The public service broadcaster committed a "significant breach" of media regulations by omitting to mention that the presenter of a documentary about the Gaza situation was the child of a Hamas representative, as determined by British broadcasting authority Ofcom.
An inquiry by the media regulator into Gaza: How to Survive a Warzone has determined that the programme was "materially misleading".
The head of the BBC had previously apologised, saying there had been "a major oversight in relation to accuracy".
The authority has directed the corporation to air a prime-time declaration about its decisions.
"As this represents a major infringement of our regulations, we are directing the corporation to broadcast a announcement of our findings against it on the BBC's second channel at 21:00, with a schedule to be finalised," the statement read.
'Risk to Undermine Trust'
The watchdog's statement declared: "The inquiry we conducted found that the documentary's failure to disclose that the presenter's father served in a position in the Hamas-administered authority was substantially inaccurate.
"This implied that the viewers did not have essential details which may have been very significant to their assessment of the presenter and the content he provided.
"Confidence is at the heart of the bond between a broadcaster and its public, particularly for a public service broadcaster such as the British Broadcasting Corporation.
"This failing had the possibility to erode the significantly high degrees of confidence that the public would have placed in a factual film from the broadcaster about the Israel-Gaza war."
The programme was withdrawn from the online platform in the month of February after the presenter's personal associations were revealed, and in this past July an broadcaster's internal assessment concluded it breached the organization's content policies on factual correctness.
A corporation official stated: "The authority's determination is in agreement with the conclusions of the corporation's inquiry, that there was a significant failing in the programme in relation to the corporation's content standards on truthfulness, which reflects Rule 2.2 of the regulator's media standards.
"We issued an apology for this and we agree with the regulator's ruling in its entirety. We will follow the sanction as soon as the schedule and wording are determined."
