Read this: YouView is finally on sale: 7 reasons why it may fail paidContent

Summary: Boxes for the UKs big internet TV venture have finally gone on sale, priced a hefty 299, four years after it was conceived. On this occasion, however, it is not so helpful. Perhaps long delays ruled out other, more lucrative avenues people who will pay subscription for lots of TV are already Sky or Virgin Media subscribers. - paidcontent.org