Despite the existence of PALplus and support for widescreen in the DVB-based digital satellite, terrestrial and cable broadcasts in use across Europe, only Belgium, Ireland, the Netherlands, Austria, Germany, the Nordic countries and the UK have adopted widescreen on a large scale, with over half of all widescreen channels available by satellite in Europe targeting those areas. The UK, in particular, began moving to widescreen with the advent of digital terrestrial television in the late 1990s, and commercials were required to be delivered to broadcasters in widescreen as of 1 July 2000, on their widescreen "C-Day".