To a large extent: it's about economy of space. You have so little real estate when you're writing a half hour show. It's really twenty minutes. So y….

The thing about animation is that it's a constantly changing process. They talk in terms of sequences - so there's like thirty different sequences in….

That and when you're doing live action you don't normally get to see the thing before it's in production. In this case we'd go in every couple weeks ….