LG has unveiled an array of devices to make smart homes even smarter - including a radical ultrathin TV than can be hung on the wall with magnets. The ultrathin LG Signature OLED W television is just just 2.57mm thin in the 65-inch model, and mounts seamlessly to the wall to create the experience of ‘looking through a window into another world.’ The company is set to market the device, which as yet has no price or release date, as a 'wallpaper' TV. To avoid cables, it has a single cable that runs to a sound bar, which has all...