I have spent the last two years watching the anime known as Ace of the Diamond in the US or Diamond No Ace in Japan. The first thing you need to know is that it is not a small time commitment. It is currently airing it’s third season. Combined the series currently spans 178 episodes. The second thing you need to know is what it is about: high school baseball in Japan.
Watching this anime has been a very enlightening experience for me as much for what I’ve been able to learn about the Japanese perspective on baseball as for the story it tells.