Four massive 'Colossus TV' video boards raised above Bristol infield

It's crunch time for Bristol Motor Speedway's "Colossus TV."

With less than two weeks until the Food City 500, the finishing touches are being placed on the world's largest outdoor, permanent, center-hung digital display. This time lapse video from BMS proves it.  

"Colossus" is made up of four custom-built screens, each approximately 30 feet tall by 63 feet wide. That's a total of 54 million LEDs and 18 million pixels.