User blog comment:InvaderrrZIM/The Manual of Style/@comment-6134941-20131009082700

I think we should use the American english since the show's script is written in American english. Take this line from Darwin in Halloween as an example: "They don't sell milk by the drop, do they? They sell it by the GALLON! Look at water; that's good for you, which is why it comes out of the FAUCET!" However I might be wrong, as there may be traces of British english used in other episodes.