Button Mapper from the Play Store
Press the set button then chose any button press it and then press the other button on the tv remote. And tv buttons should work on this remote.
This is a very generic remote a lot of Chinese manufacturers use. I've tried holding the set button for a couple seconds. Also holding it with one of the other 4 buttons. If anyone has experience with these remotes please comment.
Not actual Android TV. Looks like a remote from one of those garbage Chinese boxes which I believe is a different sub.