It took the creator more than 40 hours to program the visual display

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(WBIR-Knoxville, Tenn.) You know a Christmas light show is popular when the production has been named. More than 15,000 bulbs entertain guests at the West Hills Christmas Light Show.

Charles Derreberry and grandson Charlie Kalna started the electric celebration more than 15 years ago. The tradition started with a few wooden characters and grew into a computer generated spectacle.

This year, Kalna spent more than 40 hours programming the yard display.

WBIR Live at 5 at 4's Stoney Sharp visited the West Hills Christmas Light Show. You may view his story in the video above.

The show is located at 7008 Hampshire Drive in West Knoxville. The lights glow from 5:30 to 10:30 p.m. nightly.

You may learn more about the display on its Facebook fan page.