Why do we see Roku advertising at the bottom of our TV screen? It goes on for minutes. It seems. I press the back button, but it does nothing. I have to scroll around all the channels to get them to disappear finally.
Can you supply a screen shot so we're sure what you are asking about?
Is this on a Roku TV while viewing live over the air channels?
If so, this Reddit thread might help: https://www.reddit.com/r/Roku/comments/12nbfv4/how_do_you_stop_the_bottom_line_of_roku_smart_tv/