I just got back from extensive testing (3-4 hours

) of the Hitachi 42HDT79 (1080i with motorized swivel stand) and Panasonic PX600 (720p). Both are plasma obviously. There is 1 known problem with both of these TV:
Panasonic - horizontal banding *not really a banding, will explain why later
Hitachi - Screen flicker when there is a sharp change in contrast
Apparently the Hitachi flicker can be fix with a firmware, and also can be curb with some settings in the service menu...so it is really not a big problem. I find the hitachi to be more vivid than the panasonic, but also a little noisier...but my GF says that the Hitachi is better and much more natural, very close to a CRT.
The panasonic seems smoother to me, but my GF says the screen sorta looks like it had added photoshop smart blur on the picture and a little unnatural. Having said that, the panasonic is less noisier than the Hitachi.
Anyway, in general, I've found that LCD gives the smoothest picture with virtually 0 noise of it own. Plasma is much noisier and it can be seen easily if you compare an lcd and plasma side by side. As for color reproduction, plasma seems to be better off, and of course...black level as well. I can't decide which TV is better...the Hitachi or the Panasonic. I am actually leaning towards the hitachi as it can take 1080i (not as clean and clear as LCD @ 1080p though). Another thing is the Hitachi looks alot nicer (aesthetic), the panny looks really gross...especially the base. Anyway, at about 8 ft apart, Plasma noise is acceptable and not very significant. I think the panasonic has slightly better black level but the Hitachi black level is not bad at all...much better than my LCD imho. The panasonic is 400 (RM1300) bucks more than the Hitachi.
Anyway, regarding the flicker issue on the Hitachi..I didnt see a thing, but the content I was playing back didnt have a sharp change in contrast. As for the panasonic horizontal banding..It is fairly obvious when you display a pale background. The banding looks like poor gradient to me which causes a bunch of lines on the horizontal axis. I dont think this has anything to do with uneven surface/backlighting...it looks more like color banding to me. It is not visible in shows at all, and these poor gradient is often seen in LCD as well but less severe in projection (due to softer image)
As for the power consumption...yes...plasma suck up almost 150-200% like piscesguy said. If you live in Malaysia...power shouldn't be an issue *cough*. Plasma has poorer resolution and the noisier image makes it not so well to use it as a pc monitor. I've read alot about the newer plasma and image retention issue. It seems that if you burn in the plasma for 200hours or so with alternating color and image, the image retention issue will not appear, even less with Alis panel. However, I can tell you for sure that I saw some image retention on a set of Pioneer earlier. When the scene changes, I still see some text on the screen. But after a min or so the retained image went away.
EDIT: I think I will get the hitachi if they can do RM7.3k for me after 14% tax.
This post has been edited by AlamakLor: Jan 5 2007, 12:37 PM