The drop in ownership of television sets in America could have a massive impact on the broadcasting industry A new report from Nielsen , the US media ratings firm, conveys some bad news to the broadcast TV networks. Ownership of television sets by US households has fallen for the first time in two decades. Granted, the decline – 96.7% of American households now own sets, down from 98.9% previously – may not seem very much, but there will be many in the industry who will wonder if it’s the faint tremor that presages an earthquake. After all, for as long as most of us can remember, a TV set has been almost as commonplace a piece of domestic kit as a cooker. And television has been the dominant organism in our media ecosystem for just about as long. If that’s changing, then it’s big news and not just for the industry concerned: politics in most western