You can find TV functions on this page – Handling Key Events, Changing Volume and Getting TV Status.
You don’t need to make your own modules anymore, just simply apply those functions above and you are good to go. For example, you can apply key event of you application to remote-controller and change volumes without making volume controller separately. And the same rule applies to mute function and TV status as well, TV status can be applied to wherever it is suitable.
We encourage you to maximize the use of these functions in creating your own applications.