I have a Samsung Q9FN TV which allows you to either send sound to the TV speakers or a bluetooth speaker and I want to use both simultaneously. Here is my setup. My TV has a ONE Box which accepts all of the TV's inputs and there is a cable that runs from the TV into the HDMI ARC port of this ONE box. I have a cable that runs into my Xfinity cable box and from the cable box there is an HDMI cable that goes into port 1 of the ONE box. I have an RF headset.which I want to use simultaneously with the TV speakers, so I bought a D/A converter and ran my optical cable from the ONE box into the converter and then an RF audio cable from the converter to my RF headphone transmitter. I can now get audio simultaneously but only through the Xfinity cable box but not from the TV apps (eg. Netflix, Prime Video, etc). Where am I going wrong?