Ok those of you who caught my last thread, I appreciate it. The TV's at work are now displaying DISCOVERY HD and the HD receivers are outputting in 1080i. Just a few questions I have to get cleared up so I can answer questions about HD programming. 1. Why do the EDTV plasmas look so good(detail wise) if they only are capable of 480 lines of resolution? You would think the difference would be night and day. Is it just a very good down-conversion from 1080i? 2. For an HD monitor, does the HD receiver that comes with HD service from dish network work as the set top box needed? I am a bit confused why you would need the HD receiver in the TV. 3. Can you get any HD channels over the air? As in no cable service or dish. I just need the basics of ways to get HD programming Thanks for all your guys' help. I just have never really been interested in HD programming because its beyond my reach right now, but I want to know what I am talking about when I need to tell customers what they need. Thanks!