The Simpsons (1989): Season 23, Episode 19

23 - 19: A Totally Fun Thing That Bart Will Never Do Again

When Bart sees a commercial for the ultimate cruise, he begs his parents for a family vacation. Low on cash, the only way they can go is if each family member sells one valuable. Once they're away, Bart is determined to make the vacation last forever. So he comes up with a plan to make sure they never have to return home.