A year or two ago, the TV my roommates and I had would give weird artefacts while watching sports. I wasn't sure if it was the TV or the broadcast but the effec

A year or two ago, the TV my roommates and I had would give weird artefacts while watching sports. I wasn't sure if it was the TV or the broadcast but the effects were things like people's eyes would move relative to their head or the logo on the shirt would move relative to the shirt. They'd sort of bounce up and down. Is this motion smoothing? My guess at the time was it was an image stabilization algorithm put on by the studio since sports broadcasts involve long-range videography. Presumably the logo or eyeballs were getting "stabilized" in place while the rest of the person wasn't, making them appear to jiggle up and up down compared to the person's movement. It was eerie. But these were major sports streams, like world series baseball, and I'd be surprised if they messed it up that badly.