[speedyexpress48]

Personally (from someone that has lived in Japan years ago and has spoken the language (tho I suck at it)), I wouldn't use anime, manga, TV shows, movies or literature to study Japanese, since English and Japanese grammar varies so much and there's usually a bunch of terms that would be no use to any normal Japanese person.

It's like learning English by watching Friends or learning Italian by watching some mafia show. It just doesn't work well.