Hi All, what is the key difference between PLASMA tv & LCD tv?

[DownToEarth]

What is the key difference between PLASMA tv & LCD tv? Which is better out of them (quality & durability wise)? I want to but 40" or 42" TV please advise which one better (PLASMA or LCD & which BRAND especially)? Thanks to all!

 

[crazyaznpig]

The way it displays.

Plasma uses chemical gases to project light. LCD uses a backlight.

They both have their pros and cons but..
I'm gonna go ahead and say plasma's better but slighty more expensive.