Even if the TAX money was being used for TV services, TAX money isn't funding the porn. The people who pay for it are funding it. All the porn channels are a separate line item in the individual's bill, same as on Comcast, Dish, and DirecTV.
Don't want it? Don't subscribe to it. It's that simple. The government is not your nanny.
It is not the place of government to censor what people watch in the privacy of their own homes, and it should not be the place of the Family Action Council of Tennessee to attempt to dictate what the government may or may not do, nor to attempt to dictate how I live my life, including what I choose to watch, so long as I do not cause harm to anyone. If that offends your moral senses, then we're even, because you've offended mine.