The public service broadcaster was found to have committed a "serious breach" of broadcasting rules by omitting to mention that the presenter of a documentary about the Gaza conflict was the offspring of a Hamas administrator, as determined by UK media regulator Ofcom.
An probe by the media regulator into the programme Gaza: How to Survive a Warzone has concluded that the programme was "significantly deceptive".
The BBC's director general had already issued an apology, noting there had been "a major oversight in relation to factual correctness".
The regulator has ordered the corporation to air a peak-time declaration about its decisions.
"Given this constitutes a major infringement of our rules, we are directing the BBC to transmit a announcement of our conclusions against it on BBC Two at 9pm, with a timing to be determined," the statement read.
'Risk to Erode Trust'
The watchdog's statement declared: "The inquiry we conducted found that the programme's failure to disclose that the voice's father served in a post in the Hamas-administered administration was substantially inaccurate.
"This implied that the public did not have critical information which may have been very significant to their evaluation of the narrator and the information he presented.
"Credibility is at the heart of the bond between a media organization and its audience, especially for a national broadcasting corporation such as the public broadcaster.
"This failing had the possibility to erode the very considerable degrees of trust that audiences would have invested in a BBC factual programme about the Gaza conflict."
The programme was removed from iPlayer in the month of February after the presenter's personal associations were revealed, and in this past July an corporation's own inquiry determined it violated the broadcaster's journalistic standards on accuracy.
A representative for the broadcaster said: "The Ofcom ruling is in agreement with the findings of the corporation's inquiry, that there was a serious error in the documentary in relation to the broadcaster's journalistic policies on truthfulness, which aligns with Rule 2.2 of the authority's broadcasting regulations.
"We have apologised for this and we agree with the authority's determination in full. We will comply with the directive as soon as the timing and wording are finalised."
