I believe they actually use less energy than the old CRT (picture tube) models, but I am not an expert. If you have the manual, it should list in the specs the input wattage; the higher the wattage, the more electricity it uses. However, I doubt you still have the manual for your old TV, so unless you could find it online, that might not be very helpful.
Edit: I stand corrected; according to one source, many HDTV's do use more power than the old picture tube TV's. It also varies significantly among brands, size and type of screen: for example, plasma TV's generally use more power than LCD or LED models.
One thing you might want to look into is the settings for brightness and contrast. By default, they tend to be set at fairly high levels, and lowering the brightness and contrast can save considerable amounts of energy.
Also, while they do use power even when turned off, this is not generally a very substantial amount. Most of them use 1 watt or less when they are not turned on; this would be the equivalent of about $1.00 per year.
· 8 years ago