I know this thread is the central one in a lot of cozy security blankets, but it has to be tugged at anyway. Sorry to upset you.
The mechanics of television aren't really the issue here. The mechanics of the brain are. TV may cycle at a zillion Mhz, but electrodes attached to skulls show that brain activity falls off to Alpha level when watching TV. One of the articles mentions similar effects being obtained by fundamentalist tent preachers, and they achieve mesmerism without TVs or cathode rays.
TVs put you into an alpha state (proof courtesy of electrode monitoring), and alpha is the desired state for suggestibility (hypnotism). You are ACTIVELY told to buy cars and clothes and certain foods by commercials, and experiments have shown subliminals can hide any message desired so that it's undetectable.
Like I said, I'm sorry, but your thinking is most likely a mish mash of Madison Avenue PR and Pentagon propaganda. Perhaps you've found yourself saying or doing something you can't account for, or you've bought something you don't need, or you've not done all you can to keep your government honest. If so, there's a reason. The most likely culprit is television.