I have two Hisense TV's. When I set up my roku, I used my email to set up my Roku, then when I bought the second TV, I logged in as the same account and it works fine, except for YouTube. It keeps both the same or it just exits on launch. If she removes the channel it removes it from the first TV and you have to log back in on it. Does not matter, YouTube may launch on the second one, but can't log in.
Seems like there should be a way yo add a second email address to one Roku account so she will still have access to the premium channels. I just can't find a way on this site. Does anyone know how to do this?
Please be aware that you will only be able to use one email address that is linked to it's respective Roku account. It seems like the issue you are experiencing is actually related to the Youtube channel, than your Roku account.
For more information about that channel's features and functionality, you'll want to contact Youtube support directly to inquire further. Many channels on Roku are developed and maintained by the channel provider themselves.