The UK completed its transition to digital over-the-air television Wednesday as Northern Ireland became the last part of the country to turn off its analog transmitters, UK regulator Ofcom said. In a release, Ofcom said Northern Ireland’s switch to digital marked the end of an eight-year transition that started in April 2004 when the country first announced “blueprint” to convert over-the-air TV signals from analog to digital. Ofcom said the country is now preparing to auction the spectrum previously used by analog transmitters, adding that the auction process will begin at the end of this year. “Now that the switchover is complete, Ofcom is looking forward to delivering the 4G auction as the next step in delivering new higher speed mobile broadband services,” Ed Richards, Ofcom’s chief executive, said in the release. Canada completed its digital transition on Aug. 31, 2011. Industry Minister Christian Paradis said in March that the Canadian government will auction its 700 MHz television spectrum in the first half of 2013.