A:AnswerProbably too late for the original poster, but in case it helps anyone else...
I would not recommend LG tv's for use with SONOS system if you're planning on using ARC. LG TV introduces a decent chunk of audio delay if you're planning on running dolby vision w/ dolby digital sound. Been a big pain in the butt!
A:AnswerYes this TV comes equipped with both. I have the Xbox as well and have found this to be the best TV on the market in this price range. I mostly play FPS games and so I require detail and refresh rate and this comes with both
A:AnswerGo to the Sling website and sign in with the code from your purchase! Sadly, if you used Sling before, even though not using Sling now, this promotional won't apply! So, useless for people that maybe have tried Sling once before!!
A:AnswerI wouldn't suggest using google assistant, it still has some kinks & bugs google has to work out. Try using either Bluetooth or mirroring connections instead, this tv works extraordinarily well with any device using those connections. Even better obviously with LG branded equipment.
A:AnswerThe 65SK9000PUA is able to connect to speakers that are compatible with Wireless Sound Sync. We would be happy to see if your speakers have that feature. Our support team is available via Twitter @LGUSSupport, Facebook https://www.facebook.com/LGUSA/ or you can give us a call at 800-243-0000. ^CP