Quote:
“seemingly less capable than 1080i screens (generally it seems that SD material on 1080p screens is worse than the same material on 1080i screens).”
“seemingly less capable than 1080i screens (generally it seems that SD material on 1080p screens is worse than the same material on 1080i screens).”
Er, here's some miseducation in action, sorry to single you out, but you've made my case. What is a 1080i screen? No such thing I'm afraid. You are using signal accepted and screen resolution in a freely exchangable manner, and they are not the same thing. As I said earlier, there are 1920x1080 (commonly known as 1080p) screens, which do not accept 1080p signals, most notably at 24FPS. Conversely there are HD ready screens, just 1366x768 commonly, which do accept 1080p signals, and deal with them correctly. The issue is further clouded in that the main reason for 1080p/24 is to avoid frame rate conversion judder, like you see on R1 DVDs on many current TVs, look at the scrolling credits, do they move smoothly or in jerks? If the internal processing of the TV is not appropriate for the signal, ie a multiple of 24 HZ, you simply reintroduce the judder. The PQ on SD discs and broadcasts is a completely separate issue. 1080i HD is deinterlaced to 1080p/25 for display, so sky is theoretically the same as Blu ray, except for the compression used to squeeze the signals for HD onto the satellite transponders. 576i broadcasts are a problem for 1080 res sets, also for 768 res sets, though marginally less so, as 576 is 1 dot of picture info for every 5 screen pixels, so your TV has to invent 4 dots out of 5 from this limited info. Now, if I were a Currys salesman, how do I impart this load to the average Sun reader? Not my problem I'm happy to say.




