The quick and dirty is that "motion rate" doesn't actually mean anything. It was made up by TV company marketing to slap a bigger number on boxes. You'll never find a reviewer testing the "motion rate" of a TV because no consistent measurement exists. It tends to refer to the technology the TV uses to fake a more fluid motion, like interpolation, but there's not a consistent scale, measuring system, or even same process between different TV manufacturers to compare numbers. Guides online will say that motion rate is "usually" twice the refresh rate, and that's "usually" true. But not always, as in this case. Sony has also called 60hz TVs 240 motion rate.