How to

Block a YouTube channel


Find the channel URL

You can do this by watching a video from the channel and then clicking the uploader's name at the bottom of the video.

Format the URL

Usually, the channel URL will look like: Remove the @ sign and you now have the correct format:

Add it to a block

Edit your block and add the correctly formatted URL to the websites tab of the block.
You can also block all of YouTube but only allow certain channels using a similar method described here.