The BBC was found to have committed a "major breach" of industry standards by failing to disclose that the presenter of a programme about the Gaza conflict was the offspring of a Hamas official, as determined by UK media regulator Ofcom.
An investigation by the broadcasting watchdog into the documentary titled Gaza: How to Survive a Warzone has concluded that the programme was "significantly deceptive".
The head of the BBC had earlier expressed regret, saying there had been "a serious error in relation to accuracy".
The regulator has ordered the BBC to air a peak-time declaration about its decisions.
"Given this constitutes a significant violation of our regulations, we are ordering the BBC to transmit a message of our determinations against it on the BBC's second channel at 21:00, with a timing to be confirmed," the statement read.
'Possibility to Erode Credibility'
The watchdog's statement declared: "The inquiry we conducted determined that the film's lack of disclosure that the narrator's parent held a role in the Hamas-administered authority was materially misleading.
"This implied that the public did not have essential details which may have been very significant to their assessment of the narrator and the details he shared.
"Trust is at the core of the connection between a television network and its public, particularly for a state-funded media outlet such as the public broadcaster.
"This oversight had the possibility to damage the very considerable degrees of confidence that the public would have placed in a documentary produced by the BBC about the Israel-Gaza war."
The film was removed from the online platform in February after the boy's family links emerged, and in July an corporation's own inquiry found it violated the corporation's content policies on accuracy.
A representative for the broadcaster commented: "The Ofcom ruling is in line with the conclusions of the internal assessment, that there was a serious error in the programme in relation to the BBC's Editorial Guidelines on factual correctness, which aligns with clause 2.2 of the authority's broadcasting regulations.
"We have apologised for this and we comply with the regulator's ruling in its entirety. We will follow the penalty as soon as the schedule and wording are finalised."
