Adding Channel Favorites on Xfinity Stream

I found, To set up favorites on the Xfinity Stream app.  Go to the Xfinity website or on your mobile device with the Xfinity Stream because the "Favorite" is limited or unavailable on the streaming device. 
Once there the star is shown on the guide. Once you add the Favorite on website or mobile device, it will add the same to all stick devices on your account. 
This has been very frustrating that I could not find this information on the Xfinity forum.