Durham is a cricket city more than a football one. Durham County Cricket Club play at the Riverside in Chester-le-Street, which has hosted international cricket, and the county game gives the area a summer calendar quite unlike most English cities. Football attention here goes largely to Newcastle and Sunderland a short distance north. Durham University gives the city a large, international and highly transient student population, with the short tenancies and dish restrictions that come with it. Between county and international cricket, which conventional packages cover unevenly, and a population that moves annually, the appeal of something with no installation and no contract is more obvious here than in most places.
Durham's historic centre is tightly conservation-controlled around the cathedral and castle, and a great deal of the housing within it cannot take an external installation. Beyond that, out towards Chester-le-Street and the wider county, the housing is more conventional and coverage is reasonable, though rural County Durham is more variable. The university dominates the city, with an exceptionally high student share and correspondingly short tenancies. Between the conservation constraints and the annual turnover, installing anything is impractical for a large proportion of households. Beyond that, the useful check is the cricket, which conventional packages cover unevenly.