Netflix has been around since 1997, but its cultural impact wasn't felt until fairly recently. When it began, Netflix was essentially an alternative to Blockbuster Video. Members would create a queue of movies, the first one or three of which would ship to the member's home, where the member could watch as many times as they liked, and then return the DVD when finished. Then, in 2007, Netflix shook the world. For the first time, it offered streaming for a small selection of movies, over the internet to personal computers. The service soon evolved, becoming the core of the business. Today, many Netflix members have abandoned broadcast and cable TV altogether. Then there are the imitators. Amazon Prime. Hulu. Acorn. Bibble. There are so many of these, that you probably didn't realize we just made up that last one, and by the time you finish reading this, it is entirely likely that there will be a new streaming service called Bibble after all.

One of the major changes to how we consume media is that the Netflix membership can be shared, to be used on multiple devices at the same time. This means parents and kids, couples and room mates can share passwords. But what do you do when you break up with your ex, get a new roommate, and never see your parents because they live far away? With how many people do you share your membership? We think we can guess it.