Ok,

I'm sure this has been answered before, but what is the disserence between 1080i and 480p? I know "i" is interlaced and "p" is progressive, but what produces a better picture? My DVD player is a progressive scan player and when it plays on my TV the input shows as 480p. When using my HDTV input to view HDTV signals, it shows up as 1080I (cable compnay). Both produce beautiful pictures. What is considered better though? I see TV's advertising their resolutions when using an HDTV signal and some say 1080i while others say 480p. How do you compare the 2 to determine which TV will give a better picture?

Also, is it true that as of right now there are no Plasma TV's out there that can fully support the 1080i signal?