If an app begins to malfunction for you, you can restart it.
- Press and hold the "Home" button on your remote until the screen changes and shows all of the apps that are running.
- Highlight the app tile.
- Navigate down to the X.
- Press the OK button on the remote.
- You will briefly see 'Dismissed', and then it will return to the Home screen.
- Now, navigate to the app tile and select it again.
- It should open and function normally.
- If it still is not operating properly, you can "Un-install" that app, and reload the app.
Please note; ‘Live Channels’ is a Google implementation, in collaboration with Channel Master. Channel Master is not responsible for ‘Live Channels’ functions or issues. All Guide data, logos, and images are provided by Google. Any Guide data issues & questions, and bugs should be reported to Google.
https://support.google.com/googleplay/answer/7100415#