There is no Exit selection available in the Samsung TV’s Pandora app. It is available on the Roku Pandora app.
We have other sources connected via HDMI to a NAD T 778 AVR. The Samsung TV is connected to the AVR’s video out. We use the Samsung TV’s streaming apps and utilize ARC for the sound. Because the Samsung Pandora does not provide an Exit, it prevents the AVR from switching from ARC mode to another input device. While the the Samsung’s remote Home button does bring you to the Apps menu screen, Pandora is still showing in the background, paused, which is not true for other apps. We have to choose another Samsung app like YouTube, etc. and then exit that app in order to change to another source like Blu-ray, etc..