Changing Visibility of Individual Videos
1. Log into YouTube.
2. On the left side of the screen click "Your Videos."
3. All videos on your channel will now be displayed. Click on the current visibility status of the particular video you're looking to edit.
4. You will be presented with all visibility options. Click the status you want to apply to the particular video and hit save.
Changing Visibility of Playlists
1. Log into YouTube.
2. On the left side of the screen click "Your Videos."
3. At the top of the screen under "Channel Content" click on "Playlists."
4. Hover your cursor over the particular playlist you want to edit.
5. Click on the pencil icon labeled "Details."
6. On the right side of the screen you will be able to change the playlist's visibility status.
7. Click "Save" to apply any changes. The new visibility status will apply to the entire playlist.