Change Channel
Hi,

I configured the plugin and it works fine (except some function, which turn on).

I have a question. 
If I send command for channel up / channel down, the LG TV switch channel and I see on the log that the channel is changed.

But on my Home App, I see the CHANNEL UP (or DOWN) turned on and turned on the old channel, not the new channel.

I attache an image.
You can see Channel UP turned on and Channel 3 turned on. But the channel is channel 4.

Which option I must to set to refresh the state of switch?
![img_1103](https://user-images.githubusercontent.com/23100741/52066413-cb61d380-2578-11e9-964c-a49d15702cbb.png)
