How do I find YouTube channel ID?
You can search YouTube asking to show you not single videos but video channels.
Use filter option for that.
YouTube will show you a list of channels related to your search query.
Choose a channel you like and go to its home page. In your browser address bar you will see direct channel URL.
If you are not sure whether you see a channel link or user page link make sure the link has /channel/ and not /user/.
You need to copy only the chain of symbols which go after /channel/.
This will look like this: UC-Fg-Uetbs-7tT3B3735B5Q
Use this ID in YoutTube feeds generator from RSS Ground.