How do I restart the app?

On Apple TV Siri remote, click the TV/Home button twice and then swipe up on Channels.

On iPhone/iPad, put it in multitasking mode (click the Home button twice or swipe up slowly) and then swipe up on Channels.

On FireTV, go to Settings > Applications > Manage Installed Applications > Channels > Force Stop

How do I fix missing sound or static noises on FireTV?

In the app, go to Settings > Player and set Surround Sound to Off.

How do I install the app on multiple FireTVs?

Visit your apps and use Actions > Deliver to… to send the Channels app to each of your FireTV devices.

How can I test the network speed at my TV?

On Android TV or FireTV, go to the DVR settings tab and use the Test Speed to DVR Server button

On Apple TV, first go to the system Settings app and note the IP address of your Apple TV. Then launch Channels and make sure it is visible on the screen. Finally, use a browser on another device like a computer or tablet to open http://x.x.x.x:57000/speedtest using the IP that you found for your Apple TV.