For those of you who have a LG TV with webOS built in, here’s a little tip.
In case you have your TV hooked up to speakers and some external source, but don’t want to have the screen on while playing, you can in fact turn off the screen relatively easily.
There’s no dedicated quick-access button, but in your TV’s settings you can specifiy that you want to have the screen off for the moment.
To do this, go to your TV’s settings, next to the Picture settings. There open the list under Engery Saving. Here you will find the option to temporarily turn the screen off. After selecting this option and turning off the screen, you can turn the screen of your TV back on by simply pressing any button on your TV’s remote (apart from the power button).