Samsung's new QLED TV comes with configuration option: take a picture of the wall behind it before you hang it up and it will use it as a background wallpaper, drawing UI widgets (like weather display, etc) overtop of it, creating the hi-rez illusion that your TV has disappeared, leaving nothing behind but the bezel. Hard to get it aligned properly, and probably a config option on most TVs (but buried 11 menus deep and just advertised as "set wallpaper" rather than "make TV vanish"). (via Red Ferret)