A Brief History of the Rockefeller Center Christmas Tree
Scott Gries / Getty
Let There Be Light
New York City Mayor Michael Bloomberg had the honor of flipping the switch during the 2007 tree-lighting ceremony, illuminating the more than 30,000 energy-saving LEDs that were part of NBC's latest attempt to go green. Compared to the tree's old incandescent bulbs, the new light-emitting diodes used 1,200 kilowatt hours less electricity per day, enough to power a 2,000-sq.-ft. home for a month. Even so, the new lights did not win universal praise; some complained the tiny lights weren't as appealing as old-fashioned incandescents, while others decried NBC's glowing coverage, so to speak, of the eco-friendly move noting that NBC's parent company, General Electric, manufactured the bulbs.
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