When you think of the most popular anime series of all time, you probably think of series such as Naruto, One Piece, Dragon Ball etc. However, a group called Video Research have been collecting comprehensive anime viewership ratings in Japan since 1977 and, taking a look at their list, it may shock you to see that not only are none of the typical names we Westerners would expect there but also that the most recent episode comes from 1990! Therefore, I thought it might be interesting to take a look at some of the most watched anime episodes of all time.
First off, it’s worth noting that, according to Video Research, one of the most viewed anime episodes of all time was an episode of the original 1963-1966 Astro Boy with a 40.3% household viewership. Unfortunately, it’s unclear which of the 193 episodes it was as no specific airdate was provided. However, I find it fitting that a series that has had such an impact on the medium of anime, from storytelling to animation techniques, has one of the most watched anime episodes of all time.