I'm not sure exactly what you're indicating here; over the air, a cable system or satellite TV. When watching HDTV, anytime there is a low definition source in the transmission, the picture could be less than ideal. By this I mean, you could have the latest HDTV fresh out of the box, but if the origin happens to be an old NTSC commercial, nothing can improve it. This is normal and very common. Many folks that are using converter boxes on an old TV, don't see any improvement today with digital. Surprisingly, there is still a lot of NTSC stuff in TV stations and loads of NTSC commercials. So you can't totally blame the TV. Granted, if you don't have 1080 resolution, you're not going to get the best picture. But again, a high percentage of HDTV is only 720. We're not out of this conversion mess yet, and soon the cable companies will have to convert to total HD.