A system to watch Sky TV channels on the Xbox 360 has suffered technical problems on its launch day.
Users in the UK and Ireland should have been able to access on-demand programmes and up to 24 live streaming channels on the Sky Player.
The new service allows Xbox Live gold subscribers to access Sky content and is available on a variety of tariffs starting at £15 per month.
The channels available to Sky subscribers will depend on their existing television package.
Sky Digital's Director of On Demand, Griff Parry, has demonstrated the new service, which currently includes no BBC content.
Sky is in discussions with the BBC about providing the state broadcaster's shows on Xbox Live.
The BBC's catch-up TV iPlayer has been launched on the Sony PlayStation 3 and Nintendo Wii, although it has recently suffered problems on the Wii.