Hi @Johnsmillie
Welcome to community!
Sorry to hear you're having trouble with your Samsung. I took a look at your Pandora account and I see a new log in from your Samsung TV. Did you try uninstalling and reinstalling the Pandora app?
If you haven't already tried, would you also power cycle your TV by unplugging it for at least 5 minutes, then plugging it back in and try Pandora once more.
Thanks!