This is a bump chart that shows the evolution of the TV series’ genres spread in years, from 1968 to nowadays. It shows how the number of episodes has massively increased starting from 2002 (especially, but not exclusively, because of the general growth of the TV series’ production). It also explains that the greatest part of these episodes is classified as drama but there is an interesting turnover of genres between 2001 and 2011.
In the diagram each genre is represented with a stream whose size represents the number of episodes classified with that genre in a certain year. A timeline located at the top of the diagram is useful to follow the temporal evolution. Furthermore, on the opposite side, the number of produced episodes is specified for each year. The interactive diagram makes it easy to follow a genre over the years, its peaks and its lower values.
Below the main graph there are three stacked bars. The first one shows the total number of episodes contained in each genre. The second one is usefull to learn the total number of episodes analysed to create this graph. Finally the last one shows the total number of episodes produced in each country (most of them are obviousily produced in the USA).
In order to have some more detailed information about the TV series that mention the National Security Agency, it is necessary to use the website IMDb. Here all the 153 series' schedules are researched. As consequence, using Kimono for Google Chrome, a dataset is realised. It contains: -the title of the TV show; -one or more genres with which the series is tagged; -the country in which it was made; -the years in which it was broadcasted.
Using all these information, it is possible to count the number of episodes by genre, by year and the number of episodes by country. Therefore a dataset has been created with the number of episodes produced in each year and classified in each genre. It is important to point out that each episode could have more than one genre.
At this point with the help of the web app Raw a bump chart is created.
The image shows how the production of the TV series that pay attention to the NSA massively increases starting from 2002 with 22 episodes, much more than the 6 of 2001. This extraordinary growth is probably connected to the awful attacks of september 11, 2001 and the consequent increase of security measures. It is clear that there are two main climax: the first one in 2011 with 67 episodes and the second one in 2014 with 89 episodes.
The bump chart also explains that the greatest part of the 604 episodes is classified as drama but there is an interesting turnover of genres between 2001 and 2011. Indeed keeping out the drama series, which rule since 1996, between 2001 and 2010 the TV shows that name the National Security Agency are expecially action series and mystery series but during the next year (2011) they were passed by crime series. Probably one explanation of this record is that between 2001 and 2011 24's episodes were broadcasted, the TV show that mainly name the NSA, which are tagged as action and mystery. Between 2012 and 2014, the limit of our analysis, crime and action dominate the scene. Moreover it is important to notice that the genre comedy has increased since 2006, a sign of the appearance of security agencies' subject into none traditional genres, an example is the comedy show Chuck. On the other hand the genre science fiction was frequent in the past, especially thanks to the TV series Jake 2.0, but it has declined in the last years.
