Here is a handy chart showing the power consumption of todays most popular HDTV's. I was surprised at the yearly cost of some of these tv's. The plasmas are the biggest energy hogs the highest being $185. $185 is a considerable energy increase especially if you have 2 or 3 of these babies. CNET provided this nice collection through a test of 80 different models. It shows standby watt, powered on watts, watts per square inch, there overall score and score per size and annual cost. If you have not jumped into the HDTV bandwagon you'll be glad to know that your saving $50-$185 per year in energy costs.

 

Check out the list here at CNET