Pandora is giving a message that there is some kind of licensing issue?
I was able to sign up and log in to Pandora on the web.
start your pandora app on the TV, when it gives you a code, go to a computer and go to www.pandora.com/samsung and enter the code to activate. Do this while the TV is still showing the screen with the code. login to your account on the computer. once this has been completed then click OK on the TV.
Hope this helps.