Mobile phone owners will not be able to access Project Canvas content from their handsets, at least for the foreseeable future, says the project's chief technology officer Anthony Rose.
Project Canvas is a BBC venture, which has the backing of ITV, Channel 4 and Five as well as ISPs including TalkTalk and BT, and will allow users to watch catch-up TV services such as the BBC iPlayer as well as standard TV services over an internet-connected set-top box.
Rose, who was speaking at the Intel's Shaping the Future of TV event in London this week, said: "The problem is not about the technology but the content rights. By creating fragment offerings too soon you will confuse the market."
"We will have a Canvas website where you can look at listings and choose your favourite shows and this will go straight to your box, but we will keep things on the TV at the moment and not on mobiles or any other devices."
Rose said the internet-connected set-top boxes that allow Brits to access Project Canvas would be available as early as 2011. Pricing is expected to be around £200, although it is thought TV subscriptions could be used to subisdise this cost.
"I'm not sure what timescale was said before I joined, but we should be looking at now is the first half of 2011 for Project Canvas."
Rose added that Canvas is the next evolution from iPlayer.
"It's an open platform and that means anyone can come up with something for the platform."
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