In the original NBC airings of Captain N and the Adventures of Super Mario Bros. 3, there were teasers for the episodes. Since they became separate shows, these teasers were all wiped from existence, which can only be sourced from home recordings during the original run, making them extremely rare and difficult to find. In fact, only two are on the internet. Those two are for the second story of the episode, so there possibly weren't any teasers for the first story. They are for the episodes "Life's Ruff" and "7 Continents for 7 Koopas". The Life's Ruff teaser has Luigi saying "If you think your life's rough, today I got turned into a dog. And had to stop the Koopas from hijacking a real world space shuttle!". And in 7 Continents for 7 Koopas, the teaser has Koopa saying "I have seven Koopa kids, and the real world's got seven continents. One for each. Seems like a perfect way to divide and conquer!".