The 42 inch panny HD sets had a changing black level problem last year based on inherent brightness correction circuitry. It is unclear as to wheteher this problem has been solved or not.
Panny 42 ED models do not have this problem, and provide a better image for NTSC region 1 DVD playback ( 480P) based on near one to one pixel mapping as opposed to upconverting of a DVD signal to HD res.
For true HD signal, and HD set has about a 10% improved resolution. 10% means that, for instance, a static bowl of fruit is slightly sharper and shows a little more detail on an HD set.
Panny 42 ED models do not have this problem, and provide a better image for NTSC region 1 DVD playback ( 480P) based on near one to one pixel mapping as opposed to upconverting of a DVD signal to HD res.
For true HD signal, and HD set has about a 10% improved resolution. 10% means that, for instance, a static bowl of fruit is slightly sharper and shows a little more detail on an HD set.