Smart and Smarter/References

Continuity

 * In Lisa's Substitute Marge gives Lisa the paper quoting "You are Lisa Simpson". Mr. Bergstrom gave her a similar paper. * The poster looking for Lisa that says "Free Beer: Now that I got your attention....", which is like the one where Bart's campaign poster says "Sex: Now that I got your attention..."

Trivia

 * Lisa said her I.Q. is 159. In "Homer's Enemy", Homer states Lisa's I.Q. is 156.
 * During the end credits, you hear Simon making comments about various members of the production team.
 * The episode's title is a pun on the film .
 * Lisa claims Maggie isn't dumb just because she can't speak, interestingly dumb is a word used to describe someone who cannot speak.