Wireless Contour Stream Player (Cox TV) usage is being counted towards my Data Usage

The problem is Cox refuses to produce an app.  In the day of SmartTV sets and streamers, Cox is forcing us to wire an antiquated box in our houses.  My router, TV and Roku already have Internet connectivity; however, if I want to watch cable TV, I need to wire another device onto the connection.  An app can do this.  If you want cable TV, you need a box.  If you need a box, you need to rent it.  If you need to rent it, Cox gets more cha-ching.