While the show features real-life scientists and their inventions, a regular segment called "The Test Department" appears numerous times in an episode wherein the show's own testers perform experiments of their own.
Sementara acara ini menampilkan ilmuwan asli dan penemuan mereka, sebuah segmen reguler bernama "The Test Department" muncul beberapa kali dalam sebuah episode di mana para pengujicoba melakukan eksperimennya sendiri.