Working Projector Add-on 1.21+

You can get your own personal Projector right in Minecraft. Players who enjoy trying out new mechanics will love the mod Working Projector. With it, you can create a screen, choose a video, and enjoy watching right through a fully functional Projector without ever leaving the blocky universe. The settings allow you to flexibly use this element for any purpose.

After crafting, you need to create a screen from any block, and set up the Projector at a distance of 2-16 blocks from it.

Interact with the block to start playing the video.