Please refer to the below articles about how Hulu works on popin Aladdin:
*Sign Up process is as same as Android TV.
*To use the Hulu in popin Aladdin, you need a software update (V0.6.7). For more information about how to update software, please refer to Aladdin Help page
. If you can not see the Hulu app after the update, please contact the customer support