No doubt there are so many video downloading software, plugins and apps are present there, but I want to share some ways for downloading videos without using any software or plugin, because sometimes excess plugins, extensions or apps can slow your PC or mobile speed.
I have used some site long back for downloading a video of mine from YouTube and it has just need to place the YouTube video number and it allows in the next page for downloading the video in different formats.
Anyway Your tutorial is excellent and there are methods for downloading YouTube videos.
I also read that we can adjust the url for direct download the video fro YouTube. I am not a big fan of Facebook.