I have N850 and 65Q7F and the audio sync issue was driving me mad. As you say, samsung are useless and just read from screens and dont know the products. I found that connecting my virgin V6 box to the soundbar and using the ARC from tv to N850 the sound problem was solved. Only problem is the limited connections on the soundbar. I dont have a problem with my DVD player connected to the tv one connect box. I sometimes have issues with av inputs randomly switching the DVD on and then a pain getting back to the correct input.
... View more