Not sure if anybody's able to shed any light on this....
I recently bought a 55UF860V, which I like a lot. I have it connected to a Pioneer HTP-072 sound system, which is working nicely, BUT I have discovered that I cannot get 5.1 surround sound out of the TV. I have tried using both the optical out and the HDMI ARC thing, and both appear only to output stereo.
I've had a good old fiddle with the menu settings, no no avail. 5.1 works fine with anything connected directly to the sound system. Funny thing is, I could have sworn that it used to work- I previously had an HDMI cable in use that didn't want to work with ARC, but since swapping it with another, I have been unable to enjoy Netflix in surround sound. Really wierd.
Any suggestions gratefully accepted!