The winning brood will earn a $50,000 grand prize.
Produced by FremantleMedia North America, the show is to premiere in December.
"In the first nationwide Christmas lights competition of its kind for television, four families will compete each week to transform their homes for the holidays in just 21 days," a synopsis said. "These 16 families were chosen through an extensive nationwide search, based on their previous elaborate Christmas light displays, incredible choreography and over-the-top designs."
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