What does the refresh rate mean?
The refresh rate is the number of times the video is repainted on the screen. The standard refresh rate for HDTVs is 60 Hz, which means the full image is displayed 60 times per second. Some of the higher-end HDTVs use a 120 HZ refresh rate. This will substantially reduce blurs due to motion. 120 HZ technology basically compares two video frames and creates an additional frame in between based upon changes between the two real frames. If you like action movies, this can be a worthwhile investment.