Samsung has its own special 'clear motion rate' that they use to determine the hz level. Other companys do it to with their own wording. Basically in short its like saying....samsungs proprietary image processor provides a smoother and cleaner image than the general old school version or knockoff brand and that being said lends the image to look like its 120hz. When combined with the led backlit technology and the panels 60hz refresh rate its basically equivalent to the modern day 120hz models.
I have 4 HDTVs and I can tell you that there is a huge difference between samsung and other brands. This particular tv I have hooked up straight to the cable so I don't even get the luxury's of having crystal clear HDTV you get from having a cable box with HDTV features. I have the brightness turned down all the way to 0 as well lol since its in a bedroom with blacked out curtains. The TV is solid the apps are solid and the fact that samsung is working on an adapter to constantly update the smart features is awesome. The only down side is that this is the start of a new erra. OLED is going to be the norm. Google it for more info but basically your going to get deeper blacks with it because your turning LEDs off not hiding them.
For what its worth its an awesome low end smart TV with solid features, images, HDMI! hello-3 i think thats more than my 65" samsung has. Keeping it at 40 inches is a good small-med sized room TV, my recommendation is to get a 46" if you want it for a medium sized room and is you want a living room TV go 55". I regret my 65" purchase - to big. Streatches pixels and makes mediocre cable look terrible because you see every flaw. Hope this helps, if not feel free to ask another question I have no problem providing info/answers to any questions.
I did...a logitech k400. It works ok.Makes browsing the net and manuerving the screen alot easier. For some strange reason, when I try to set up netflix,vudu etc it wouldnt let me enter info via keyboard only via the remote.Will troubleshoot it at a later time.
you cant...Samsung claims due to FCC new rules that because this TV does not have the chip to support YouTube CC (closed captions) it will not have this app. Samsung has elected to leave this out. Bad move and they have done this without informing customers or resellers. Not even their authorized sellers. The link is via the browser and it will not work very well. It will crash on HD video. Any HD video on the Samsung browser will crash it.