Kevin Kopelow, Amanda Bynes, Danny Tamberelli, and Irene Ng are the only panelists to have appeared in all four seasons of the original 1990s show.
For a brief period in the first season, the show experimented with pouring chocolate syrup, orange slime or yellow slime on the panelists instead of the usual green slime.
The show used significantly less slime in the first season compared to the second, third and fourth seasons.
A contestant in the audience had an opportunity to win a prize if one of the panelists performed the Secret Slime Action. In the first season, these were more elaborate prizes, including video game systems. In subsequent seasons, it was smaller Figure It Out themed prizes, including shirts and backpacks.
Contrary to popular belief, the Secret Slime Action was NOT performed every time.