Hey, Been meaning to post for a while now, we played around with our set up and manage to find something that suits whilst maintaining Dolby Atmos. We have an LG tv and the HW-N850. When we first set the sound bar up we would have a terrible audio lag, mainly on netflix. Normal TV and Amazon were much closer. This was really bad when on a WIFI connection, so we switched to HDMI which made it closer, but definately not right. We read somehwere about the TV not being fast enough at processing Dolby Atmos, so it essentially processed the visual faster whilst the audio was processed slower and then needed to be sent to a different device. We switched this over by bying a Roku 4k streaming stick (one build to stream Dolby atmos). Our current set up now relies on the Roku being powered from the TV but going into the HDMI In on the sounbar. We then run a HDMI from the soundbar into the TV. For us this has fixed the issue, although it means we not have a streaming device managing all of our apps rather than the smart TV functions.
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