In the last few years a lot of shows started doing long 30secs.-1min. long previews before the show started, showing things that are already in the show. Yeah they did that before, but usually not as long. Then they started doing equal length "Coming up next..." before the commercials. The last thing I wonder about is in the last year about 3/4 the way through a show they will come back from a commercial and show a very short 20-30sec long clip, usually an outtake or something, then go right back to commercials. All shows started doing these things around the same time. Is there some reason for this? I always assumed it was so they didn't have to show as much content.