Do you notice these days even with the invention of DVR that reality shows love to show a quick preview of what will happen later in the episode before each commercial break? Do you also notice that sit-coms and dramas with real actors do not and never have shown previews before the commercial breaks? Why do reality shows do this? Even if you do not have the luxury of DVR to fast-forward through the commercials to see how the episode continues, waiting 2-3 minutes to see what will happen in the episode is completely tolerable and what TV watchers always experienced until the stupid 'coming up next on...' was invented.