|Air Date||July 13, 1994|
|Written by||Tim Doyle|
Baby Sinclair enters the "terrible twos" and his behavior becomes horrendous. Desperate times require desperate measures, and the Sinclairs enlist the aid of "The Babysitter" to exorcise Baby's demons. When neither the exorcist nor doctors can cure the baby, Robbie hatches a plan for the family to fool Baby into believing he's three, which actually works.
- Dr. Herder: Michael McKean (voice), David Greenaway, Tom Fisher
- Babysitter: John Glover (voice), Bruce Lanoil, Tom Fisher
- Additional Dinosaur Performers: Julianne Buescher, Jack Tate, Star Townshend
- This episode features the first appearance of Blarney, a parody of Barney the Dinosaur. Blarney returned in a later episode, "Into the Woods".
- The book that the Babysitter reads to Baby Sinclair is titled Blue Eggs and Toast, which is a spoof of the Dr. Seuss book, Green Eggs and Ham.
- The episode is largely a spoof of the 1973 film The Exorcist
- Taped on July 15, 1993
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|Earl's Big Jackpot||Changing Nature|