Competing displays include a Northwest-theme, classic Christmas toys, a two-acre showing organized by a 15-year-old, a theme park design, an eclectic array of decorations, animatronics, and a tribute to veterans, Part 2 of 2.

Competing displays include a Northwest-theme, classic Christmas toys, a two-acre showing organized by a 15-year-old, a theme park design, an eclectic array of decorations, animatronics, and a tribute to veterans, Part 1 of 2.

The magic continues with the Shaw family's display featuring more lights on its Christmas tree than the famed tree at Rockefeller Center in Cranbury, NJ; the Kasper-Cook family, who built their home to showcase a light show after being inspired by season one of "The Great Christmas Light Fight," in Minnetrista, MN; the De Sario family, whose passion has helped them raise almost $150,000 for the Hospital for Sick Kids, in Toronto, Canada; and the Thompson family's husband-wife duo with an all-handmade holiday display in Glen Allen, VA. Watch to see who judge Taniya Nayak awards $50,000 and the coveted Light Fight trophy Part 2 of 2.

The magic continues with the Shaw family's display featuring more lights on its Christmas tree than the famed tree at Rockefeller Center in Cranbury, NJ; the Kasper-Cook family, who built their home to showcase a light show after being inspired by season one of "The Great Christmas Light Fight," in Minnetrista, MN; the De Sario family, whose passion has helped them raise almost $150,000 for the Hospital for Sick Kids, in Toronto, Canada; and the Thompson family's husband-wife duo with an all-handmade holiday display in Glen Allen, VA. Watch to see who judge Taniya Nayak awards $50,000 and the coveted Light Fight trophy Part 1 of 2.

The festivities continue in the second episode, featuring the Taylor family's "Emoji celebration" with Christmas emojis and a 20-foot high "Frozen" castle in Phoenix, Arizona; the Van Gent family's meticulous light show and giant synchronized float crafted by their house of engineers in Redding, California; the DiMartino family's inspirational Christmas display after the tragic loss of a beloved wife on 9/11, while also raising over $190,000 for a Pediatric Cancer Unit in Staten Island, New York; and the Kloos family's sibling duo, whose display makes them the youngest ever to compete on the show in East Brunswick, New Jersey. Watch as judge Taniya Nayak decides who will walk away with $50,000 and the coveted Christmas Light trophy.

Season four kicks off as four families showcase their incredible Christmas displays, including the Johanessen family's 250,000 light home and "Santa's Retreat" in Winter Park, Florida; the Preston family's epic display with America's tallest and brightest Nativity scene in Kingman, Arizona; the Piper family's express-train ride through their multi-acre property in Wake Forest, North Carolina; and the Pugh family, whose former Navy pilot brings spirit and patriotism with their servicemen salute in Chesapeake, Virginia. Tune in to see which family judge Carter Oosterhouse awards $50,000 and the coveted Christmas Light trophy.