Sky has revealed that its first 4K offerings will include more than 70 on-demand films and more than 100 of this season's live Premier League games.
The UK broadcaster will start showing ultra-high resolution content to some of its satellite customers from 13 August.
BT, Netflix and Amazon already offer 4K material, but analysts say Sky has a better line-up of films and sport.
But demand will be limited by the cost of the premium subscriptions required.
In addition, only a minority of UK households currently own a TV capable of showing the 2160p resolution footage involved, which contains four times as many pixels as a 1080p "full HD" image.
Virgin Media has said its 4K service will be announced later this year
Sky's 4K line-up includes James Bond and Premier League - BBC News
The UK broadcaster will start showing ultra-high resolution content to some of its satellite customers from 13 August.
BT, Netflix and Amazon already offer 4K material, but analysts say Sky has a better line-up of films and sport.
But demand will be limited by the cost of the premium subscriptions required.
In addition, only a minority of UK households currently own a TV capable of showing the 2160p resolution footage involved, which contains four times as many pixels as a 1080p "full HD" image.
Virgin Media has said its 4K service will be announced later this year
Sky's 4K line-up includes James Bond and Premier League - BBC News