If you want to download as videos itself, you can use other free tools like Free Youtube Download to download all videos with a single click. Please be careful while installing this tool as it optionally installs a browser toolbar and modifies search preferences. So please make sure you read and uncheck the optional checkboxes while installing to avoid surprises in your browser. 
For this software, you just need to copy the YouTube link and paste it directly into the box that’s labeled for the link. Then you get to choose the format that you want to download it into. You’re going to need to download their specific software in order to be able to download, but then you just have to click to download, and you’re all set. It really is just that easy. You can even tell it to download multiple URLs at the same time, so you can fill in everything you want to download and tell it to start while you head off to do other things.
The number one reason to download the entire YouTube channel is that you’re going to have offline access to them. If you want to catch up on your favorite shows but you’re going to be without internet for a while you may want to have a way to do it without the internet. Being able to get access wherever you happen to be, directly on your device, is going to be an important step. It’s going to make sure that you have something to do during that time that you’re away from internet access or not wanting to use your internet access (which is another great reason).
If you’re looking to download a whole YouTube channel at one time, this is definitely one way that you can do it. WinX YouTube Downloader can download over 1000 URLs. Even more, it has support for different YouTube playlists and channels and even gives you the ability to record your own live videos, so this is one platform that can definitely achieve a whole lot more than you might have thought. On top of that, it doesn’t give you any kind of ads (because who wants to watch those?) and it lets you download from just about any kind of platform and into just about any kind of file.
If anything were to happen to those videos, it would cost you YEARS of your life re-filming them all to replace the ones you’ve lost, not to mention thousands of dollars in the meantime! Now, you may think just because you follow the community guidelines and don’t participate in copyright infringement, your channels (and all your videos) are SAFE – Unfortunately, you’d be wrong! In fact, your competitors can maliciously flag your account for no reason whatsoever, and YouTube’s “M.O.” is to suspend and terminate your account without provocation. One day, you wake up and everything you’ve worked for is GONE without a trace. As the millions of people who have had their channels terminated can tell you: 
Click on the drop-down arrow and choose either “Private” or “Unlisted.” A private video can’t be seen by anyone unless you share the URL with them. It won’t show up in searches, be posted on your channel, or appear in your feed, and it can’t be shared by others, show up in a channel section, or be commented on. An unlisted video won’t show up in searches, be posted to your channel, or show up in a subscriber feed, but it can be shared and commented on by others, and it will show up in a channel section.
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