How to turn Netflix autoplay previews on or off

Dear Netflix,

Thank you for providing us a way to turn off the automatic music and previews when we browse for shows. The auto preview usually flashes up the most gratuitous violence or critical plot points. I understand having the theme song or overture for the movie, but this made-up music is terrible. It gets even worse if you share the same music across different movie titles. Yes, I know there is a mute button, and I'm glad there is finally a way to stop the mini trailers.

https://help.netflix.com/en/node/2102