@usercQJKzEqzLB wrote: If nothing else, just to archive my challenges.   I have the HW-K950 Soundbar, UBD K8600 4k Blueray, and KS9800 78" SUHD tv.    If you do not have everything set-up correctly, you will get little or no ATMOS effect.     As highlighted in the manual, if you do not see the blue LED and Dolby ATMOS scrolling across the sound bar - you don't have it.   You must set the Blue-ray player to bitstream unprocessed, run the HMDI into the sound bar (1 or 2) and run the HMDI ARC back to the tv.   Since the KS9800 has a One-Connect box, I mistakenly assumed I could run the Blue-ray HMDI to the One-Connect box and have the respective ARC connections to the soundbar.   While you get some version of "surround sound", it's not Dolby ATMOS.     The One-Connect complicated things because I did the "easy" thing and assumed the simple connection options would work.   They do work, but you don't get what you paid for until you use more of the brute force method.   ... View more