The British broadcaster committed a "major breach" of broadcasting rules by not revealing that the presenter of a film about the Gaza situation was the offspring of a Hamas representative, as ruled by regulatory body Ofcom.
An investigation by the broadcasting watchdog into the programme Gaza: How to Survive a Warzone has determined that the film was "substantially inaccurate".
The chief executive of the broadcaster had already issued an apology, saying there had been "a significant failing in relation to factual correctness".
The authority has directed the BBC to transmit a evening declaration about its decisions.
"Since this amounts to a significant violation of our code, we are instructing the BBC to air a statement of our conclusions against it on the BBC's second channel at 9pm, with a timing to be confirmed," it said.
'Potential to Undermine Credibility'
The regulator's statement said: "Our investigation concluded that the film's lack of disclosure that the narrator's parent held a position in the Hamas-administered government was materially misleading.
"This implied that the public did not have critical information which may have been very significant to their evaluation of the narrator and the information he presented.
"Trust is at the heart of the bond between a television network and its public, notably for a state-funded media outlet such as the public broadcaster.
"This error had the risk to damage the significantly high amounts of credibility that viewers would have invested in a BBC factual programme about the conflict in Gaza."
The film was removed from the BBC's streaming service in the month of February after the presenter's family links emerged, and in this past July an internal BBC review found it breached the organization's content policies on truthfulness.
A corporation official said: "The authority's determination is in line with the results of the internal assessment, that there was a major oversight in the programme in relation to the corporation's content standards on accuracy, which corresponds to regulation 2.2 of the regulator's media standards.
"We have apologised for this and we agree with the authority's determination in full. We will adhere to the directive as soon as the schedule and language are finalised."
