Availability
Seven is simulcast in analogue, standard definition and 1080i high definition. On 18 March 2007, test simulcasts for 1080i commenced in the Sydney and Melbourne markets, Adelaide and Perth followed on 24 June 2007, with Brisbane following on 25 June 2007, and regional Queensland on 26 June 2007. Prior to this, the Seven Network provided a 576p enhanced-definition service.
Seven is broadcast in metropolitan areas and regional Queensland through a number of owned-and-operated stations including ATN Sydney, HSV Melbourne, BTQ Brisbane, SAS Adelaide, TVW Perth as well as STQ Queensland. Seven Network programming is also carried into other areas of regional Australia by locally-branded affiliate networks Prime Television, Golden West Network (14% owned by the Seven Network), Southern Cross Television, and WIN Television in South Australia.
On 1 April 2008, ATN Sydney began broadcasting a digital signal to Foxtel and Austar's satellite and cable subscribers.
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