BT Vision is hoping to boost figures by two to three million subscribers with its updated service.

The company has ordered a next generation set-top box, which is claimed to be more energy efficient (so ticks from the green brigade) and has a more powerful processor.

The new Pace Group design can also store 80 hours of content, and employs Microsoft's Mediaroom IPTV middleware and Nagravision conditional access technology.

This basically means it still combines a digital terrestrial receiver and IPTV connectivity for on-demand content and interactive services; but does it better than the previous model.

BT Vision went live on 4 December 2006 offering an on-demand TV service via aerial and broadband.

Since then, it has won the right to show content from Universal Music and HBO (the latter which is only just available on iTunes); as well as Disney, ABC and the sports channel Setanta.