We're facing the possibility of needing to buy a new main television for the household. Our old DLP set has gone into some mode where it literally takes 15 minutes for it to come on - and even if that's related to the consumable bulb that requires replacing from time to time, TVs seem to be getting so cheap nowadays the wisdom of replacing that $100 bulb is fading fast.
But it's been six or seven years since I've looked seriously at TV technology and what things you should consider when you buy.
LED, LCD, Plasma ... Hz ... contrast ratio ... brightness as measured in cd/m2 ... response time as measure in ms ...
What matters? I don't think I have any interest in 3D, I don't think I have interest in some proprietary Internet TV inclusion. I think I can figure out what inputs/outputs matter to me.
When I see TVs (I'm looking probably in the 42" - 48" range) are sets that start as low as $400 or so but range probably to $800-$1000 depending on specs. Discounting obvious low-end 720p sets and whatnot, it's hard to know what specs matter.