Which reality series follows homeowners competing to create the most impressive Christmas decorations?

The reality series in which homeowners compete with elaborate Christmas decorations is 'The Great Christmas Light Fight'.

Each episode visits decorated homes and neighborhoods whose displays compete in categories such as overall design, originality, and use of lights. Judges assess the decorations, and winning participants receive a cash prize. Displays can include large sculptures, synchronized lights, animated figures, and themed installations.

The US series premiered on ABC in 2013. Lifestyle television hosts and design experts have served as judges, including Taniya Nayak, Carter Oosterhouse, and Sabrina Soto at different times. The program is filmed during the Christmas-light season and is structured as a seasonal competition.

It differs from a simple holiday home tour because the featured decorators are competing for recognition and prize money. The title also distinguishes it from 'The Great Christmas Light Fight' specials and local community displays that are not part of the television contest.