Television is a mature mass media with close to eight decades of regular broadcasts since its beginnings in Germany, the UK and the USA. Today, despite the spectacular growth of the Internet and social networks, television is still the leading medium for entertainment and information across the world, exerting an unparalleled influence on public opinion. Until recently television had undergone a rather slow evolution regarding the interaction with its users, yet this is beginning to change. The ongoing trend of digitalization has accelerated the process, and the computational capacity of...