Since its premiere, The Slap has enjoyed modest ratings. It dipped a bit when it changed timeslots, but for the most part, it has stayed pretty consistent between 3 and 3.5 million viewers with a 0.7-0.8 rating. However, these are not the only numbers that matter. The show has benefited greatly from L+3 viewings. For 2 weeks in a row, The Slap saw a 51% increase in viewers with L+3 numbers. This meant that it gained 1-1.1 million viewers with this delay. In this era of changing viewing habits, these are not numbers that should be ignored.
The show also has a 116 index of adults living in homes with $100K incomes. This upscale audience is likely to bring in desirable advertisers for NBC, which could be a contributing factor as to why the show hasn’t gotten cancelled. If the network is making money from advertisers, they won’t worry as much about the modest ratings.