Fans were left raging with TNT Sports as Tuesday's Champions League coverage suffered from a number of technical difficulties.
The BT Sport rebrand is the UK's broadcaster of Europe's premier competition this season.
However, things did not go smoothly during the showing of Manchester United's tense win over Copenhagen.
A crackling noise could be heard at various points throughout their coverage, leading fans to take to social media to express their frustration.
'What's going on with the sound on TNT, wrote one while another said the 'sound issues all night are ridiculous.