These are what we call the 'YMMV items.' Things that some people find in this work. We call them 'your mileage might vary' because not everyone sees these things in the same way. This starts discussions in the trope lists, a thing we don't want. Please use the discussion page if you'd like to discuss any of these items.
Ear Worm: The opening theme. (I see a land with liberty for all...)
Foe Yay: You could say this is how James and Sarah started out.
Fridge Horror: Henri is adopted by Lafayette and goes with him to France after the American Revolution's end. Anyone who knows much about the French Revolution would most likely know that the Lafayette family suffered a great deal under the Jacobins' rule, and that he and his wife and son only narrowly escaped the guillotine. Is Henri absent from France's history books because he didn't escape?
Memetic Mutation: Averted for the most part in the show itself; played straight on the "commercial break" segments.
"Let's play a round of Continental Cartoons!"
"Time for Now & Then—-comparing life to the 18th and 21st centuries!"