Advantages and disadvantages of high Refresh Rates

Most of the marketing ads are being pushy about higher frame rates. However in reality not all the TVs can keep up with such higher rate. By default 60-120 hz calibrated and sold to the customers. And though they do support higher frame rate for HD and 4K video resolution, it is not recommended to have them enabled.

Depending on the type of TV or the monitor screen you have the refresh rate can be viewed in each context differently. For example while playing games you can choose the higher refresh rate at 120 and onward. Based on the way games are rendered on CPU and on screen, you won't find much issue with the display. In case of TV, you may find that using the higher refresh rate does affect the type of the content you are viewing. In technical terms it is called as soap opera effect and it can be visible for higher refresh rate.

Enhanced refresh rate such as 240 onwards may not be good for your TV. As it does not add much video details to the content. You need to keep the refresh rate to 60hz for regular viewing. In some specific situation you'd need to use it for 240hz and onwards. Even if you wish to watch HD and 4K standard then going over 120 doesn't get you any specific benefit at all. It only has the resolution clarity advantage which is not even noticeable in most situation.

Well, the fact remains that the TV manufacturers always make huge claims about the higher refresh rates. The best could be the 120 Hz refresh rate. There is not any specific performance improvement beyond that. Some Plasma TVs go as far as 600 Hz.
I would advice you to know the difference and choose the refresh rate wisely while watching the content. Refresh rates higher than the 60 Hz do provide a smoother animation, but the movements appear too fast. For some natural looking scenes, it could be a little annoying. In such cases, you would better watch the shows in 60 Hz.

But in cases of sports or such other faster motion videos using a refresh rate of 120 or even 240 Hz improves the effect. It will reduce the stutter and blur.

The thumb rule should go like this. If you are watching real people talking or in action consider disabling the higher refresh rates. That will avoid what is known as soap opera effect. While if you are watching sports or animations, switch to higher refresh rate. Even the gaming will need you to switch to high refresh rate.

Higher refresh rates would not offer any added information to your videos. A maximum of 120 Hz rate could be better in certain situations. But a rate beyond that may not be beneficial in any way. But do not go beyond 120 Hz. It would be nothing more than mere gimmick.