Great tv show from 2009. K-On! season 1 is by far one of the best online tv shows I've ever watched. This tv show got everything what a tv show should have, and I'm assured that anyone who see the full tv show K-On! season 1 will enjoy it. Remember, no matter what, you have to watch K-On! season 1 online. What determines the phenomenon of this tv show? It's realism, taking care of psychological probability?. Write in comment how much you liked it and what's your rate.