Apple original content unavailable in US?

Each time I try to play an AppleTV original show, it tells me that the content is not available in my region. I live in the United States (Texas), and my profile shows that I live in the United States. I have tried on my Macbook Pro, my iPad, my iPhone, and the AppleTV app on my television. All apps give me the same message, that the content is not available in my region.