Tv's Which One? Lcd Led Lcd-led Plasma? Help?

Whats the difference between lcd led-lcd and plasma, how does the htz system work on plasma vs lcd. what do i look for in a tv? which is better and whats recomended to go with?

Suggestion:

You have several questions in one, so I'll just try answer a portion of what you're asking. See my answer in the Yahoo link below.