I dont like 120Hz refresh, it looks weird. I see it a whole lot on bad 4k transfers of older movies, they're either doing a 3:2 pulldown or something else to up convert the scan rate, but no matter what it is, it makes the motion look weird and excessively fluid.
3:2 pulldown is taking 24fps film and making it work in 29.97fps TV video, generally with a couple interlaced frames. If you're seeing something "excessively fluid" the TV is interpolating frames. Which I love: 24fps needs to die. But a 120Hz refresh TV can also display 24 fps exactly, by showing the same frame 5 times, if the manufacturer has provided such a mode. 60Hz TVs cannot display 24fps without judder or interlacing
