I keep waiting for the show to explore William's character in more depth. He has a paper route, he plays the piano and the organ, and he sings, and we found out in this episode that he also plays the harmonica, he cooks, makes coffee, and dispenses the best advice in the family. For all that, he doesn't seem desperate for attention and approval like Timmy and Frank, he isn't on an existential quest like Lawrence, and he's clearly nothing like Eddie and Pat. When does he get a storyline?