The British broadcaster was found to have committed a "serious breach" of broadcasting rules by not revealing that the presenter of a programme about the Gaza conflict was the offspring of a Hamas official, as ruled by UK media regulator Ofcom.
An inquiry by the broadcasting watchdog into the programme Gaza: How to Survive a Warzone has found that the documentary was "significantly deceptive".
The head of the BBC had already issued an apology, noting there had been "a major oversight in relation to truthfulness".
The regulator has ordered the broadcaster to transmit a prime-time declaration about its findings.
"Given this constitutes a major infringement of our code, we are instructing the corporation to transmit a statement of our conclusions against it on BBC Two at nine o'clock in the evening, with a timing to be determined," the statement read.
'Risk to Erode Confidence'
The watchdog's statement declared: "Our investigation found that the programme's failure to disclose that the narrator's parent held a role in the Hamas-administered government was substantially inaccurate.
"It meant that the audience did not have essential details which may have been extremely pertinent to their evaluation of the voice and the information he presented.
"Credibility is at the core of the relationship between a broadcaster and its viewers, notably for a state-funded media outlet such as the public broadcaster.
"This failing had the risk to damage the very considerable levels of credibility that viewers would have placed in a BBC factual programme about the Israel-Gaza war."
The programme was pulled from iPlayer in the month of February after the narrator's personal associations came to light, and in the month of July an corporation's own inquiry found it violated the organization's content policies on factual correctness.
A corporation official said: "The regulator's decision is in agreement with the conclusions of Peter Johnston's review, that there was a serious error in the programme in relation to the BBC's Editorial Guidelines on factual correctness, which reflects Rule 2.2 of the authority's broadcasting regulations.
"We expressed regret for this and we comply with Ofcom's decision in complete. We will adhere to the penalty as soon as the date and wording are determined."
