LG 75SM8600PTA (75") Questions & Answers

Does it have 120hz refresh rate

Is there any way of getting Dolby Atmos from this TV onto Sounbar?
Just bought new TV today for my wife - early Mum's day gift. We were looking for a big TV and wanted to enhance with a Dolby Atmos compatible soundbar. I am about to fork out $1450 for a Samsung q90r soundbar but when I was checking the audio settings on the tv the menu indicated Atmos not for external speakers. I'll be disappointed if we can't get the full potential out of this TV. Seems like a reasonable TV picture but standard sound whilst being clear, lacks any punch.