My whole house uses Rokus for TV watching as I run my own Plex server. I block Roku’s ads and the only time I see them push something is if they go through the trouble of pushing it as a new category.
They did this for “Agatha All Along” today. I just find it interesting as I have never seen Roku do that for a single title before. I could have missed it maybe, but we could at least say it happens rarely.
See below for proof. That’s from my office TV.