The British broadcaster engaged in a "major breach" of broadcasting rules by omitting to mention that the voice of a programme about Gaza was the son of a Hamas representative, as determined by regulatory body Ofcom.
An investigation by the broadcasting watchdog into Gaza: How to Survive a Warzone has determined that the programme was "substantially inaccurate".
The chief executive of the broadcaster had already issued an apology, saying there had been "a major oversight in relation to factual correctness".
Ofcom has directed the broadcaster to transmit a evening declaration about its decisions.
"Given this constitutes a major infringement of our regulations, we are ordering the BBC to air a statement of our findings against it on the BBC's second channel at nine o'clock in the evening, with a schedule to be confirmed," the regulator stated.
'Risk to Erode Trust'
The authority's announcement stated: "Our probe concluded that the documentary's omission to reveal that the voice's parent held a role in the Hamas-administered government was significantly deceptive.
"Consequently that the public did not have critical information which may have been highly relevant to their assessment of the narrator and the details he provided.
"Confidence is at the center of the bond between a broadcaster and its audience, particularly for a state-funded media outlet such as the British Broadcasting Corporation.
"This failing had the risk to undermine the exceptionally strong amounts of confidence that viewers would have put in a documentary produced by the BBC about the Israel-Gaza war."
The programme was removed from iPlayer in February after the presenter's family links were revealed, and in this past July an corporation's own inquiry determined it breached the corporation's content policies on accuracy.
A BBC spokesperson stated: "The regulator's decision is in accordance with the conclusions of the internal assessment, that there was a significant failing in the programme in relation to the BBC's Editorial Guidelines on accuracy, which reflects clause 2.2 of the regulator's media standards.
"We issued an apology for this and we comply with the authority's determination in full. We will follow the directive as soon as the timing and language are confirmed."
