A light display in New York is putting Clark Griswold’s home to shame.    The incredible display includes 686,811 lights that are choreographed to 250 songs.    Homeowners Grace and Tim Gay say it took them eight weeks to create the display.    It includes 8 miles of extension cords.   In 2014, they won the Guinness world record for most lights.   This year, they beat their own world record.   They also helped their community by pairing up with a fire department to raise $500-thousand for local charities.