Q&A for How to Watch Private YouTube Videos

You cannot find out who uploaded a private YouTube video unless they grant you access or you recall the channel name from when it was public. If the video is embedded or in a public playlist, it will simply say "Private Video" without revealing details. If you commented before it became private, your comment in your History tab might provide a clue.

Some videos may be blocked due to copyright issues or other violations, or they might have been changed to private or unlisted, which can take time for the site to update.

The person might feel embarrassed about the video being public and decided to make it private once they realized someone had watched it.

No, if someone blocks you on YouTube, you can generally still watch their videos. Blocking primarily prevents you from commenting on their channel or videos. You will only be unable to view their videos if they are already private (and you have not been granted access) or are age-restricted. You will not see a specific "blocked" message; instead, you would realize you are blocked if your comments fail to appear.