As the refresh rate of a screen is increased, the amount of images shown is doubled and there are more noticeable changes in terms of picture quality. Depending on what's being displayed on the screen, the jump from 60 Hz to 120 Hz is the line between whether or not you're going to be able to see motion blur when pictures are moving too fast for the screen to handle. But commonly, most streaming services and television shows will run at a maximum of 60 Hz, so unless one plans to do extensive gaming and wants optimal visuals, having a screen with a 60 Hz refresh rate will do the trick for most cases.