The British broadcaster committed a "significant breach" of industry standards by omitting to mention that the narrator of a documentary about the Gaza conflict was the son of a Hamas administrator, as ruled by regulatory body Ofcom.
An investigation by Ofcom into the programme Gaza: How to Survive a Warzone has found that the film was "significantly deceptive".
The head of the BBC had previously apologised, saying there had been "a serious error in relation to factual correctness".
The authority has directed the BBC to air a prime-time announcement about its decisions.
"As this represents a significant violation of our rules, we are instructing the broadcaster to air a statement of our conclusions against it on the BBC's second channel at nine o'clock in the evening, with a timing to be finalised," the statement read.
'Potential to Undermine Trust'
The regulator's statement said: "The inquiry we conducted determined that the programme's lack of disclosure that the presenter's father occupied a role in the Hamas-run administration was materially misleading.
"This implied that the audience did not have vital facts which may have been very significant to their evaluation of the voice and the details he shared.
"Trust is at the heart of the bond between a television network and its public, particularly for a state-funded media outlet such as the British Broadcasting Corporation.
"This failing had the risk to erode the exceptionally strong levels of trust that viewers would have placed in a BBC factual programme about the conflict in Gaza."
The documentary was removed from the BBC's streaming service in last February after the boy's familial connections were revealed, and in the month of July an corporation's own inquiry determined it infringed the organization's editorial guidelines on truthfulness.
A corporation official commented: "The regulator's decision is in line with the results of the corporation's inquiry, that there was a major oversight in the documentary in relation to the BBC's Editorial Guidelines on truthfulness, which aligns with clause 2.2 of Ofcom's Broadcasting Code.
"We issued an apology for this and we comply with the regulator's ruling in full. We will comply with the directive as soon as the date and wording are confirmed."
