You’ve probably seen them before. The pickup truck pulling behind it a trailer with a digital sign on it with rotating ads, bright colors and it’s very catching to the eye. In London, people are going to start seeing a lot more of that technology thanks to Exterion Media’s new tech.Make sure to keep up with all of the latest episodes of Pro A/V NOW by following us on Twitter @ProAVNOW and read our publication at marketscale.com!