There are times when changes occur in the channels and in the server improvements and you must update your application to update it and be able to see the newly added channels and update the application at all times. This guide will show you how to do it.
Click on the gearwheel in the lower right of the application.
Then click on "Update Contents".
Wait until the application completes the update and update. Once you do, simply click on the Back button on your fire arrow to return to the main screen and then click on "Live TV" and enjoy :).