Not going to tell you what I think about plasma TV's though... blurry, low resolution, slow refresh rate, heavy-as-h*** to wallmount... don't make good computer monitors... ugh, good luck with that. 
Actually plasma screens have a way better colour reproduction, better blacks, better contrast, better moving pictures.
So far, the best Amiga "HD" picture I got so far is via emulation and my Eizo FG2421 monitor on 100/120 hz with a crt filter and black frame insertion

that is, for the "SD" games.