To delete the MHz Choice Apple TV app:
1) Using the Apple TV remote, highlight the MHz Choice app on the Home screen but do not press enter yet.
2) With the app highlighted, press and hold the Touch surface on your Apple remote until the app jiggles on screen.
3) Press the Play/Pause on your Apple TV remote, then select Delete. Done!
4) To reinstall: Open the App Store and re-download the app and proceed to the sign-in process.