If you go into the privacy settings on your Roku TV you can turn these ads off, but it also turns off the more ways to watch feature. To turn this off go to your Settings and select Privacy. There you will find an option to “Use Information From TV Inputs.” Turning that off should disable these pop-up ads.
My problem is trying to turn off the banner at the bottom of my TV using my new Streaming Stick+ on the Spectrum TV app that obscures sports score with a row of squares along the bottom that says, LCD, 1080p, MCI, Dolby, Triple, Clear Voice HDMI and USB. It comes and goes. Thanks.