The first electric television which was black and white with a screen size of 8 x 10 inches consumed 250 watts of electricity. Though over the decades, wattage has fluctuated a bit, today a Plasma, 50 inch screen viewed at 50% brightness uses, the exact same, 250 wattage.
Today, most TVs are either plasma TVs or LCD TVs. Plasma TVs use a great deal more energy than LCD TVs. However, LCD TVs use about twice as much energy as old-school cathode ray tube TVs. What really matters is the size of the set; just because you can afford a 60-inch TV doesn’t mean you should buy one. A large set can really jack up the cost of electricity bills, in addition to hurting the environment.
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