If we connect electrodes (or use non-invasive potential and current measurement techniques), we can reverse engineer the functionality. We see that electrons hi

If we connect electrodes (or use non-invasive potential and current measurement techniques), we can reverse engineer the functionality. We see that electrons hit the screen. Where do they come from? The emitter. What controls its voltage? The amplifier. What are the inputs to it? We can see that there is a measurable signal coming to the television through the wire. There is nothing supernatural or even quantum level stuff going on.