Hi @DP2011-kk! Thanks for posting.
While there isn't an On/Off button on your TV to turn off Pandora, you should be able to quit the Pandora app on your device by pausing the music and returning to home by using the home button on your remote.
Alternatively, you can log out of Pandora on your device, however, you'll need to log back in if you'd like to listen to Pandora again.
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