My parents live in Houston, Texas and can only get it by purchasing a premium cable digital package that comes bundled with hundreds of channels. They watch hardly any TV but have a huge cable bill just to get EWTN. It's too bad its not easier to get, but I can kinda understand why it doesn't get priority over other channels in cable packages (low demand).
I don't subscribe to cable at all, or have any worthwhile antenna reception on my ancient TV. The only way I would ever subscribe to cable is if I got married and my wife really wanted it or if cable packages could be entirely customized for each subscriber. There's only a handful of channels that are worth watching in my view. Most channels air either intellectual drivel or immoral drivel.