Background: In December 2009 the United Kingdom became the first European country to deploy high definition content using the new DVB-T2 transmission standard, as specified in the Digital TV Group (DTG) D-book, on digital terrestrial television.
Question: Which European country first deployed HD content using the new DVB-T2 standard?
Answer:<extra_id_0>.
<extra_id_0> the United Kingdom<extra_id_1>