The BBC committed a "major breach" of industry standards by omitting to mention that the presenter of a programme about Gaza was the offspring of a Hamas official, as determined by UK media regulator Ofcom.
An probe by the broadcasting watchdog into the documentary titled Gaza: How to Survive a Warzone has determined that the film was "significantly deceptive".
The BBC's director general had earlier expressed regret, stating there had been "a serious error in relation to truthfulness".
Ofcom has ordered the broadcaster to broadcast a peak-time statement about its conclusions.
"Since this amounts to a major infringement of our code, we are ordering the corporation to air a statement of our determinations against it on BBC Two at nine o'clock in the evening, with a schedule to be finalised," the statement read.
'Risk to Erode Credibility'
The regulator's announcement stated: "The inquiry we conducted determined that the documentary's lack of disclosure that the voice's parent served in a post in the Hamas-controlled authority was substantially inaccurate.
"It meant that the viewers did not have essential details which may have been extremely pertinent to their evaluation of the presenter and the content he provided.
"Confidence is at the heart of the bond between a television network and its viewers, especially for a national broadcasting corporation such as the BBC.
"This oversight had the risk to damage the very considerable amounts of trust that viewers would have invested in a documentary produced by the BBC about the Israel-Gaza war."
The film was removed from the online platform in the month of February after the boy's familial connections were revealed, and in the month of July an broadcaster's internal assessment concluded it infringed the organization's editorial guidelines on truthfulness.
A representative for the broadcaster commented: "The authority's determination is in agreement with the conclusions of the corporation's inquiry, that there was a major oversight in the documentary in relation to the BBC's Editorial Guidelines on accuracy, which corresponds to clause 2.2 of the regulator's media standards.
"We have apologised for this and we accept the authority's determination in full. We will follow the sanction as soon as the timing and wording are confirmed."
