The Great Christmas Light Fight S01E05 - May Your House Be Mouse-y and Bright

The MIZE Family - Marinwood, California.

The GAY Family - LaGrangeville, New York. Tim Gay's intricate geometric display centers around a pond. In 2012, the Gay family held the world record for most lights on a residential display.

The MACRINA Family - Wyomissing, Pennsylvania. The Macrina's moved to a new house before the competition, so they had a challenge determining if they had enough lights, and where all their old lights would go on the new house.

The KOWALCZYK Family - Tinley Park, Illinois. Dominic Kowalczyk and his spirited friends and family decorate a Winter Wonderland, including hundreds of custom wood figures, and one giant parrot.