Ive recently put together my new home theater in a new house that my family has moved to. I have a Hitachi 65S500 with the HD upscaling to 1080i / 540p. My DVD player is an older / cheaper JVC prog scan dvd player and my HD reciever is an RCA RTC100 with a VGA->component converter to the TV. My question is.. after watching some HD stuff on DirecTV, im kind of pleased not only by the detail of the HD stuff but more of the motion of it. I dont think my TV can do 720p so im assuming the signal is interlaced. However the motion of the image kind of stutters more than when im watching a dvd. Its more cinematic, its not a bad thing or a problem. Im just kind of wondering why... even with a prog scan DVD player upscaled to 540p HDTV... why doesnt DVD have such a slower stuttering motion like HD stuff does? DVD seems so smoooth and less cinematic compared to the HD stuff... regardless of interlace / progressive. Is it time for a DVD player upgrade or is that just the way it is? Any comments are greatly appreciated.