You don't usually expect to see such a thoughtful episode of a mainstream television show, but this episode of The Simpsons manages to:
--show the moral progression of a vegetarian.
--show the difficulties of being a vegetarian in a meat-eating society.
--savagely mock that meat-eating society.
--end with a message the vegetarians should show tolerance and respect for others, influencing people without badgering them.
It's the sort of episode I can show my kids, an episode not with a trite TV lesson, but an actual lesson.