Go to www.popsical.com/premium and press the "Subscribe" button.
Login or create a new account.
Choose the plan that suits you (monthly recurring or 24hour pass) and click the "Subscribe" button.
Enter your billing details and credit/debit card details.
Enjoy unlimited play time!
Make sure the Popsical TV is activated with a premium account that you just created in order to enjoy the unlimited play time.
The app doesn't need to be logged in with a premium account. As long as it is paired to a Popsical TV that is logged in with a premium account you can enjoy unlimited play time.