@TeamYouTube how do I block a channel? I've never subbed to, or liked a video from H3 productions, but their videos keep auto-playing after I watch a Pewdiepie video. I hit the dislike button immediately after they begin to play and back out, yet like an STD they keep comin back.
You can remove recommended videos by selecting "Not interested", this will influence how YouTube suggests channels to you in the future. Here's more about managing your recommendations: https://goo.gl/mfD7rf . Hope this helps.