I don't know what you idiots have done to screw the Roku app so bad. It was working well for quite a while. DirectTV Now is looking more and more like a better option.
When the Roku app does manage to come up (which is a rare occurrence) the screen is a pixelated mess. I have loaded the applications for stations that are available to stream live TV, such as Discovery, HGTV, Fox Business and others. They work fine and provide a non-pixelated image.
My network is fine. Other applications work well. The problem with the Roku Application is TWC/Spectrum. Its either your infrastructure or the ROKU application. In either case, THE PROBLEM IS YOURS!!!
FIX IT!!!!