In August 2013, the BBC broadcast an episode of Panorama titled "Saving Syria's Children" portraying a chemical attack.
The Russian TV Channel RT claims that the attack was staged by the BBC.
It further claimed that the BBC replayed one of the interviews in September 2013, but that the voice of the interviewees had been altered, so that rather than saying "It must be some sort of napalm", she said "It must be some sort of chemical weapon."
The BBC complained to the UK Regulator Ofcom about the accusations. This 2015 BBC News article suggests that the UK regulator sided with the BBC and found the RT had breached journalism standards in its report.
However, the article doesn't actually state whether the BBC altered the clip or not, as is portrayed in the RT report.
Did the BBC alter the words of one of its interviewees in post-production?