One of my former TV stations used to time-compress certain syndicated TV shows, Seinfeld, in particular. Like some radio stations, the idea was to squeeze in a couple extra spots an hour. The problem became when time compressing TV, it wiped out the Closed Captioning data in the vertical interval of the picture for the squeezed show. When the FCC started clamping down on requiring CC for all shows, I got to be the bearer of bad news to the station group that time-squeezing days were over. A few months later; I caught a couple of them doing it anyway, and their GM's were sent to the woodshed.