The latest addition to the Philips Hue smart light system is a small black box that syncs a room full of lights with whatever’s happening on your TV. Games, movies, streaming media, or anything else you’re watching can pass through the box, which will perpetually adjust the color and brightness of your lights to match, theoretically creating a more immersive experience.
It definitely works — during a demo last month, I got to watch a room full of lights glow and flicker along with the trailer for Avengers: Endgame, with the colors rapidly changing to reflect what’s on-screen. It was a neat effect, and I can imagine it working great with certain experiences, like games or a horror movie.