I have internet only, and use a roku box for TV. I will tell you that my internet frequently goes on and off which disrupts my viewing. When I call comcast customer service, they try to sell me cable, and a lesser speed for internet instead of resolving the problem. If I didn't live in a town where Comcast has a monopoly, I would switch internet services but alas I am stuck!!!! I have to wonder if they do this on again off again on purpose to get me to buy their cable service, because they cannot give me a logical reason why my internet keeps failing. My wifi is fine, just no internet! So dang frustrating!