There was a method to do this with with CRT's a long time ago too. Archive: https://archive.today/AV7CX From the post: >>Covertly intercepting video signals is a very old-fashioned way to go about electronic spying, but a new method discovered by researchers puts a frightening spin on it. A research team out of Uruguay has found that it’s possible to intercept the wireless electromagnetic radiation coming from an HDMI cable and interpret the video by processing it with AI. Three scientists from the University of the Republic in Montevideo published their findings on Cornell’s ArXiv service, spotted by Techspot.