I thought the same thing. :)
Yeah, I don't mean to undermine his point. As any created thing can be corrupted and twisted to be an instrument of Satan, and TV definitely has been, but, going as far as to imply that electronic schematics are the same as demonic sigils and that all black screen devices are scrying mirrors is a bit excessive.
I presume this man is a Protestant? Because the Prots definitely seem to go overboard into superstition when it comes to these kinds of comparisons. Hence why a lot of them condemn Catholicism as paganism because of the similarities in imagery and cultus.