 And that gives them a characteristic motion blur, which we have over the many decades of seeing films come to expect from films. What these smoothing modes do is add extra frames that are created by the hardware to pull the frame rate up to the maximum for the TV, often like 60 frames a second. And this causes what's often called the soap opera effect, in that the movements in the films become oddly smooth and looking much more like a classic daytime videotaped soap opera than a feature film.