I wouldn't worry about purely display devices like TVs sending hashes. They don't retrieve the entire file, and hashing streamed data has challenges that tend t

I wouldn't worry about purely display devices like TVs sending hashes. They don't retrieve the entire file, and hashing streamed data has challenges that tend to break the active stream. They would need to have a large enough sample of the streamed media, and most importantly it isn't illegal to watch pirated materials, only to distribute or publicly show them. The television manufacturers simply don't have an economic interest in trying to do so when they can easily collect data regarding subscription based app use. The cops asking them to do so wouldn't change the fact it would cost the company money to implement and maintain, and no real pay off. There certainly is a slope to worry about here, but the slope is in the direction of corporate profits. Anything that doesn't result in profits is a slope up hill and nobody wants to be the one pushing that particular rock up hill.