FOX Sports stuttering and pixelating

I first noticed this during the World Series and I see it now on pretty much all sports coverage on FOX. The picture momentarily freezes and jumps, and at other times goes into pixelation. At one time I thought it was happening with all sports, but it only seems to be on FOX broadcasts. I don't know if it is just the local station (I'm using cable TV) or the network feed. At one time I had the online support people do all their resets and signal pulses, but it is still going on. Very annoying.