Generally speaking large flat panel TVs, with their high energy consumption, toxic components, and overly abundant packaging are not very eco-friendly, however, some are friendlier than others. If you want a killer picture without killing the environment, you should take a look at the Philips Eco TV. This 42" full 1080p HD LCD TV is packed with power saving functions, and was manufactured a little more responsibly.
At the top of the energy saving technologies is the Eco TV's ability to dim the back light during darker scenes, which also improves the black level performance. The Eco TV also sports an ambient light sensor that senses the rooms light and dims the screen appropriately. Finally it is equipped with a power-saving mode that caps the peak light output. All of these functions can be turned off if you want to maximize the performance, however when enabled the runs on about 75 watts which is well below the 265 watt average* for other 42" flat panels. The Eco TV's standby power consumption is less than 0.15 watts compared to the 42" average of 2.1 watts* (we recommend using a vampire power killing switch to make this 0).
Beyond the power saving specs, the Philips Eco TV is made from lead free materials and has a mercury content that is in compliance with RoHS standards. To top it all off the it is packaged with recycled materials.
* based on data from CNET's HDTV Power Consumption Test