RMBP HDMI PORT

I just recently bought a Samsung 3D tv 2013 model.
I tried connecting my rMBP to the Samsung via HDMI 1.4.
Questions:
1. Why does the refresh rate in the rMBP is only 60hz? There is no option for 120hz? Why is that?
2. Is this the tv or is it a problem that the rMBP has??
3. I'm streaming over the Internet, say Netflix, the blacks are still pixelated even though its suppose to be in HD? Any thoughts?
4. In any event how do you fix these issues?
Thanks

I have an rMBP, but I don't have a TV/monitor with >60Hz refresh, so I don't have any answers for #1 or #2.
As for #3, I also don't subscribe to Netflix, but I do some streaming, so I can offer some general observations. Most stream providers, if not all, do at least some compression of the stream. At least some of them tailor the compression to the available bandwidth on the connection. (That means the entire path, from the servers to your rMBP.) Any degree of compression can have visible artifacts. HD isn't immune to that; in fact, it may need more compression to fit in a given bandwidth. I can't tell from here whether that is what you are seeing, but it could be.
As to solutions (#4): I assume you have verified that your new TV can do 120Hz refresh and that it announces it to connected devices; I have no suggestions beyond that. For the streaming, what sort of sustained bandwidth is your internet connection actually delivering? How uniform is it? Does the pixelization vary when you switch sources, or at different times of day?

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