There used to be a time when, once a week, colleagues would gather around the water cooler to discuss the previous night's episode of a certain television show. When you would be left, mouth gaping, as a bombshell was dropped at the end of an episode of your favourite series; knowing you had to wait a full seven days to find out what happened next. When nobody but TV critics could publish spoilers; when all anyone could talk about for months on end was how on earth that season's drama was going to conclude.