Everyday while I am watching tv show my screen goes black. I am not changing channel it just goes black.

When I am watching a show which is included in my package my tv goes black. I am not channel surfing just watching. Everyday this occurs, and when I troubleshoot they always respond with I am changing channels to what I am not allowed to have. This is ridiculous. You can never talk to a human always a response .. tv just froze now and went black