Please Help with Samsung UN65NU800 Connection-to-AVR Questions...

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I posted this message in several sections of the forum already with absolutely no replies (which is head-scratching to me) so I figured I would try the receivers section, as there are questions I have regarding hooking up my new Samsung 4K TV with an older Onkyo A/V receiver in the mix...if anyone could assist here it would be greatly appreciated as the TV was delivered today and I want to ensure I can get this up and running...


It was a long time comin', but I am FINALLY the proud owner of a new 4K TV in the form of a Samsung UN65NU800 we just purchased from Best Buy on an awesome sale. Couldn't pass up this opportunity to replace our long-in-the-tooth Sony SXRD rear projection set which has begun showing signs of the dreaded yellow staining...

While the TV was delivered today and we wait for our cabinet builder to come and alter our entertainment center in order to fit the larger screen, I had a few pre-operating questions if anyone with any knowledge of this set can answer...

First and foremost: This model, as I understand it, was Samsung's most premium 4K display BEFORE getting into the QLEDs (which we simply couldn't afford, unfortunately, nor an LD OLED) -- is this actually a good TV with a good picture?

Secondly, out of the gate, we won't be hooking up a UHD player to this display (wanted an Oppo 203, but didn't act on it because of money and now the company isn't even making players anymore, as most enthusiasts know) due to monetary restraints and the aforementioned Oppo dilemma; instead, I will be continuing to run my trusty Oppo BDP-83 BD player for BD and DVD playback, still connected through an Onkyo 605 AVR via HDMI 1.3a connections.

Now, given this setup, am I correct in assuming I can connect everything the way I had it in the past with the SXRD TV -- that is, HDMI OUT from the Oppo to HDMI IN of the Onkyo, and then HDMI OUT from the Onkyo to HDMI IN of the new Samsung? If so, the TV should then be upscaling the 1080p signal from the BDP-83 to 4K, correct? I know with DVD playback, there will be double processing going on, as the Oppo will be upscaling DVDs to 1080p and then the TV will be upscaling THAT to 4K...

Assuming this is correct, should I experience any problems running an older spec HDMI connection from my older gear to the Samsung? I do understand that I need a new AVR in order to do 4K video passthrough, but I'm not there yet and instead need to connect the older gear I'm running to the new TV.

Additionally, we don't plan on doing ANY streaming or using ANY of the smart applications on the TV -- we just want to use it for disc playback (and watching cable from our high def box) -- how difficult is it to "ignore" the smart features and app setup on this TV upon setup? Can they simply BE ignored?

With regard to a setting I had made in the Oppo BDP-83 based on my previous equipment (and based on what Oppo customer service advised me on), the COLOR SPACE setting in the BDP-83 was on "4:4:4," as Oppo told me that's what my Sony SXRD "natively sampled at" -- what should this COLOR SPACE setting be on for the new 4K TV?

Also -- just out of curiosity: Should we experience a pretty intense "impact" jump going from a 50" set at 12 feet to a 65" at the same distance, especially considering we're going from a rear pro with an aging optical block to a brand new 4K display?

I'm sure I'll be checking back in with a myriad of questions once I'm up and running (such as about picture mode settings and such), but this is what I can think of right now; if anyone could assist in any way, it would greatly appreciated.