The BBC committed a "serious breach" of broadcasting rules by omitting to mention that the presenter of a programme about Gaza was the child of a Hamas representative, as ruled by UK media regulator Ofcom.
An probe by the broadcasting watchdog into the documentary titled 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 significant failing in relation to accuracy".
The authority has ordered the broadcaster to transmit a prime-time statement about its findings.
"As this represents a significant violation of our rules, we are directing the broadcaster to air a message of our determinations against it on the BBC's second channel at nine o'clock in the evening, with a schedule to be confirmed," the statement read.
'Possibility to Damage Confidence'
The authority's report said: "The inquiry we conducted found that the film's omission to reveal that the narrator's male guardian occupied a role in the Hamas-controlled authority was materially misleading.
"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 presented.
"Confidence is at the center of the bond between a television network and its public, especially for a public service broadcaster such as the British Broadcasting Corporation.
"This failing had the possibility to undermine the very considerable levels of confidence that audiences would have put in a documentary produced by the BBC about the Gaza conflict."
The programme was pulled from the BBC's streaming service in the month of February after the boy's personal associations came to light, and in this past July an corporation's own inquiry concluded it infringed the corporation's journalistic standards on truthfulness.
A corporation official stated: "The regulator's decision is in agreement with the findings of Peter Johnston's review, that there was a major oversight in the documentary in relation to the BBC's Editorial Guidelines on accuracy, which aligns with Rule 2.2 of the regulator's media standards.
"We have apologised for this and we comply with the authority's determination in full. We will comply with the sanction as soon as the schedule and wording are finalised."