@TeamYouTube why do I keep getting videos that I have already watched as recommended videos. I can turn it off manually but I don't want since it's just so many of them.
Just to confirm, have you already tried these steps: Tap the 3 dot menu > Not interested > Tell us why > I've already watched the video? Also, our Help Center resource has info on how to improve your recommendations: https://goo.gl/mwxH46 . Let us know if this helps!