The discussion of Sky HD prices has made me think. Ive always been convinced that digital TV is used to squeeze more channels into a fixed bandwidth, rather than to improve picture quality. However, watching some of the Sky Movie channels recently on an ordinary CRT TV, it does seem like PQ is reasonable if there isnt too much motion. Then, I thought it was comparable with DVD, in fact. However, if I watch DVDs on a good PC, the PQ is very much better than on TV, and better than almost all of the HD demonstrations that the High Street shops have been doing recently. In fact, I imagine the PC gives a similar picture to that yardstick of DVD reproduction, an SDI modded DVD player feeding a suitable scaler and HD display. That really extracts very much more from a DVD than does an ordinary player and TV. Now, many people have said that an SDI modded Mk1 Sky+ box with such a scaler also provides a great improvement to PQ. If the improvement is as great as it is with DVD, then I would have to wonder if a Sky HD box really makes that much sense. Can anyone tell me the SDI benefit with Sky is as great as it is with DVD? Regards, Nick Mods - could you correct the thread title to "How good is Sky + SDI?" Cheers.