turns out you gotta click on the link "move channel to brand account" on your youtube channel account settings page.
however this page will take you to a page that will most likely have no options to move to.. like this page
in this case, what you need to do is go to your google + account, click on the left nav bar and go to pages. and there you will have to create a new page.
as the time of this writing, choosing to create a new page leads you to google my business:
don't be intimidated.. just go ahead and create a new business account. when you do that and go back to your youtube channel account settings, you will see that you have the option to transfer the ownership of yourtube channel to your new business
I know what you're thinking: but isn't my new business registered to the same email account that owned the original channel (which defeats the whole purpose?)
the answer to that is that you can add many managers to look after your new "business".. you can add another email domain or another person all together to that business, once you do (you must invite them.. and they must accept first) then you are free to transfer the channel to that business and delete your original account.
i spent like an hour with google's tech support team but we both figured it out at the end