   bbc four is a british television channel operated by the british broadcasting corporation (bbc) and available to digital television viewers on freeview, iptv, satellite, and cable. bbc four launched on 2 march 2002,"culture, controversy and cutting edge documentary: bbc four prepares to launch", bbc press office, 14 february 2002. retrieved 2 apr
2002_establishments_in_the_United_Kingdom BBC_television_channels_in_the_United_Kingdom Television_channels_and_stations_established_in_2002 Television_channels_in_the_United_Kingdom