Appears in the lower right corner when accessing ESPN channels. Something about using RED button to install app or enhanced features or something. I can hit EXIT or just leave it and it will dissapear after 15 seconds or so, and then reappear smaller and eventually disappear. Really annoying. Read another thread I think from 2017 where someone was having a similar issue on ST or something and was informed Menu\Settings\Notifications\TVEnhancements would end the issue. Sadly, I do not have a Notifications setting that I can find on my HR54-500 under 0x114b. Much obliged.