i found that with my normal Yellow Video input from my DVD is acceptable on my Sharp LC32A66M, but still sometime can see some pixel lo...
Plasma is good for Astro and also SD Video, but if the LCD TV Processor is good it can help to give you nicer picture from Astro and DVD also... ask them to try out with normal DVD at shop but pls remember ask them not to use showroom setting but use home (normally what we use at home) setting... coz showroom setting the colors and contrast is better than home setting

haha not yet cause not playing most of the movies with my HDPro file player
my fren pass me a lot of his movies on my 1TB HDD in the HD Player
maybe i try out tonite if time permit me...