In late 2010, Sky rolled out Anytime+ to millions of Sky+ HD homes, offering on-demand access to content from Sky channels and third-party networks.
Sky subscribers needed to connect their Sky+ HD set-top boxes to the internet to access the on-demand platform, which complemented the Sky Anytime 'push' VOD service over satellite.
However, Sky opted to make the service exclusive to Sky Broadband customers, which it claimed at the time was down to the need to control the technical ecosystem around the service.
Anytime+ is being actively used in 1.2m Sky homes, and the platform saw a weekly usage increase of 80% in the three months to December 31, 2011.
Sky has now agreed to extend the service to all Sky homes, regardless of their broadband provider. This means an estimated 5m Sky subscribers will be able to access the platform by Easter 2012.
It is thought that the move has in part been motivated by negotiations around getting BBC iPlayer and ITV Player on Sky Anytime+. It was announced today that ITV Player will launch on Sky tomorrow, while BBC iPlayer will go live on the platform later in the year.
Part of talks between the BBC and Sky around extending iPlayer to Anytime+ was thought to focus on the video on-demand platform being more widely available beyond just Sky Broadband customers.
This is largely because the BBC has committed to reaching as many UK homes as possible with iPlayer, the catch-up TV platform which racked up 2bn programme views last year across all devices where it is available.
Sky chief executive Jeremy Darroch said: "Sky Anytime+ will go from strength to strength in 2012 and we are delighted that the addition of the BBC iPlayer and ITV Player will allow customers to also enjoy the best of terrestrial TV, whenever they want.
"We're also delighted to be able to widen access to the service so that millions more Sky customers can enjoy the added flexibility it offers."
Anytime+ features a user interface designed to be a logical extension of the Sky+ HD electronic programme guide (EPG).
It features thumbnail images for programming, editorialised listings and search tools for the discovery of content, including the recent addition of classic movies from Sky Box Office.