On May 22, the breakfast programme ended with a montage of clips illustrating the exceptionally sunny weather at the time, accompanied by the song 'The Sun Has Got His Hat On'.
However, a viewer alerted Ofcom that the version of the song used contained offensive racial language: "He's been tanning n***ers out in Timbuktu, now he's coming back to do the same to you."
After being contacted by Ofcom, ITV said that the Calendar News programme editor had been completely unaware that the original 1932 version of the song contained such an offensive term when they picked it for the montage.
Due to this "mistaken assumption", the whole song was not reviewed before being played on the programme.
Calendar News had noticed the error shortly after it happened and ensured it was not repeated on the ITV1+1 timeshift broadcast.
ITV also ran an apology on its regional news bulletin later in the day, stating: "Finally Calendar would like to apologise for a piece of music we transmitted at the end of tonight's six o'clock programme, which contained offensive language. It was transmitted in error."
ITV said that senior management in the newsroom were warned to ensure a similar incident does not happen again, and the situation will be referred to in future newsroom compliance training.
Ofcom noted that the term used was considered by audiences to be amongst the most offensive language, and it was aired in the morning when anyone could have been watching.
However, the regulator accepted that ITV had taken sufficient action to atone for its mistake and so considered the matter to be resolved.