“There are going to be dozens or hundreds of shows that are either not produced or cancelled because of the DVR. The recording devices, which are in about 20 percent of American homes, are a boon for couch potatoes but a headache for TV networks. Advertisers don’t want to pay for non-live viewing because they figure DVR viewing involves a lot of ad-skipping. And if advertisers don’t want to pay for commercials, networks cancel shows.”