The black levels of this television will be on par with other VA-type televisions from Samsung. If you would like to see a comparable model, be on the lookout for the following: NU6070, NU6080, NU6900, NU6950, NU7100, NU710D, RU7100, RU710D. I would highly recommend looking at the 65" or 75" sizes of these series listed for a more accurate depiction of this 70" model. Most likely, this 70" model will not be on display, as it is an exclusive Black Friday model for Best Buy, and it will be available for only a limited time.
For an accurate review: https://www.rtings.com/tv/reviews/samsung/nu6900