"Doug's Brain Drain" is the 12th episode of Doug in the Disney era. It first aired on November 23, 1996, on ABC.
It's B.L.A.B.A.B.B.A. Day at the middle school, and there are dozens of clubs the students can join. Doug tris to find the best club and thinks that the Brain Team would impress Patti, and make him less average. Doug then takes the Brain Test and in order to be on the school's Brain Team. When he cheats, he ends up on the team but can't handle studying for the Bowl of Brains Quiz Bowl. Skeeter takes over and ends up on the team while Doug watches.
- One of Doug's dream sequences involve students riding on a flying school bus, driven by Ms. Frazzle inside Doug's body. This is a reference to "The Magic School Bus".
- Principal White, when announcing Chalky and Doug as the newest members of the Brain Team, mispronounces both names "Chalky Studebooger" and "Dan Funnie".