Sky broadband customers set to receive mega speed boost soon – and it’s a major blow for BT

SKY’s broadband service looks set to receive a bumper boost soon as the company announces a big upgrade to the network it uses.

Up until now Sky has relied BT‘s Openreach network to deliver internet to some 5.7million customers across the UK.

But the firm has now signed a major deal with BT rival CityFibre to use its network too.

While existing arrangements with BT will continue, the move came as blow to the legacy telecoms giant...