Buying LCD & PLASMA: Which is the best way to compare image quality between store?

Question

Ok i know already about specs and the best models out there, now is time to check some stores to see their best quality. What i can do to really test which one has the best image?

I was thinking of something like if they read usb drive and testing a HD video? but sounds crazy maybe you guys tell me some ways to EQUALLY test them all, since most of store have diferent images, video to show them... Also if my idea is cool most hdtv has usb ports or what i can do?

NOTE: i mean store in my city not online! i wont buy online.

Answer 1

If your going 1080p I would ask them to play a blu-ray movie on each one and you could compare them that way. Seeing each TV in true HD will give you an idea about which one is best.

Answer 2

LCD is good for rooms with a lot of light, plasma is good for low-light and also a better viewing angle.