I'm sad that you guys are ignoring the ultimate serious/goofy show, Gintama, in which even the course of one episode the tone perfectly switches from a death serious situation to a massively comedic one back and forth on several occasions.One piece is good, but I think the others are perfect descriptions. There is nothing more serious than life and death, and both Naruto and Bleach deal with the very serious moments. I can name you like a hundred episodes from each that are absolutely dramatic, and 100 that are so goofy and dumb.