Futurama S3 E7 - The Day the Earth Stood Stupid

Futurama

Futurama S3 E7 - The Day the Earth Stood Stupid
8.4

Earth is invaded by super-intelligent flying brains, who sap the Earth's populace of their intelligence. Leela is taken to Nibbler's home planet Eternia, where the Nibblonians explain that only one human is immune to the brains' powers - Fry.