It's official: the average Briton now watches four hours of television a day. And it's not all down to reality TV and talent shows. So what is the new attraction?
According to a new study from TV Licensing,
 the average Briton now settles down to watch a little more than four 
hours of telly a day – an almost half-hour increase on 2006 viewing 
habits. But why? What's keeping us glued to the telly? 
