The plot, if I may be so bold, was that a good guy and a bad guy had been magically shrunken and were now inside the head of some big, dumb guy. Whilst still inside his nose, another character, not realizing they were in the big, dumb guy's head, invoked the counter-spell to bring the shrunken characters back to full size. When he realized his mistake, he mentioned that the spell couldn't be undone.
At this point a young, female character screams, "Oh, no! You mean he's gonna go scanner on us?!".
Now how many kids watching this show do you think got *that* reference?*
*The reference, boys and girls, is to the 1981movie Scanners, in which a man's head is telepathically blown apart. Admittedly, there have been several sequels.