I need some clarification, as to be honest the Samsung support staff are hopeless with knowing anything about their own products.
I was on chat with support enquiring about the eARC firmware update for this soundbar, he replies to me saying it doesn't have eARC?!
the whole reason I purchased it was because of this update, I have the LG C9 which is eARC!
if they don't provide this firmware update to allow it, then this soundbar is going back for a refund.
So has the Q70R Soundbar got the eArc update then? Steve Withers of AV Forums said all 2019 soundbars would get it. Then he updates and said all 2019 soundbars apart from the Q60R.
Judging by the TV models you just mentioned, it looks like the Q70 TV is going to miss out on it. Hopefully the Q70R soundbar isn't.