What is the best hz rating on tv?

The native frequency of a television signal is 25Hz, 30Hz, 50 Hz or 60Hz, that is, an image refresh 25, 30, 50 or 60 times every second.

Any television that features a faster refresh such as 100, 120, 200, 240 Hz is using a video processor to generate intermediate images to refresh the screen faster than the native signal would do. Some of the processors do a reasonable job while others don't show much improvement. Some will say that the processing actually makes for a lower quality image rather than higher.

Before investing money in a television that offers high refresh rates, make sure you get to look at the image and decide for yourself whether it improves the image or not.