remember although tv-s have higher refresh rates, the source is still the same at 50 / 60 Hz. 120Hz rates come with an additional backend intelligent frame creation process which fills pseudo frames in middle thereby trying to give you the feeling of lesser motion issues. Hence I think you would be better off going with the 100 / 120 Hz with that Motionflow tech (although two are separate things) since the increased rate of refresh makes provision for the Motionflow to insert pseudo / extrapolated frames. You might have some problem during watching movies where you may get "soap opera" effect and if you do not like it you will need to turn off motionflow and view in normal 100 / 120hz refresh rates with no motion improvement.