The fifth episode of Idea Channel. In this episode, Mike explains that Hello Kitty's success lies in her iconic facial expression – or rather, the lack of one – which allows people to associate the kitty with whatever emotion that they want.

With her cute pink bow and huge noggin, Hello Kitty is one of the most recognizable characters in the world. She sells billions of dollars worth of merchandize, but what is it about this simple cartoon cat that makes her such a beloved piece of pop culture?