my wife will read the encyclopedia thing to him at night and doesn't know crap about star wars. he'll come into my room in his pajamas during story time and ask me what something is. I'll be like, "that's an at-at." and he'll yell back at my wife and be like, "SEE! Daddy says it's an At-At, not an A-T-A-T". I have no idea if that's accurate but I've always said "At, At" instead of spelling it out like a downgrade.