So I have the LG CX. But it will work perfectly fine depending on what you want. First, you will have to connect the sound bar to the arc tv input. If you want to watch regular tv like directv it will work the same despite you connect the directv to the tv. But for enjoying Dolby Atmos you will have to connect the streaming device (Like an Apple TV) directly to the sound bar and you will not have to worry about the EARC.