The definition of a working TV set changed at the end of 2015. Sets which respondents claimed had not been used to watch TV over the past six months and sets for which respondents could not specify the means of reception (cable, satellite, terrestrial, etc.) are now included in the definition. A detailed description of the change in definition can be found here. The impact of this change appears to have worked through, and the figures are now broadly stable at the new base level, although there has been a noticeable increase in the number of households with no TV. There now appear to be over 1.4 million homes which feel they do not need a TV set.