Smart and Smarter/References


 * There's a few references to Lisa's Subsitute:
 * 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...".
 * 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.