Buffy the Vampire Slayer

In "When She Was Bad" Xander suggests playing miniature golf, but Willow reminds him there is no miniature golf course in Sunnydale. But in this episode, the gang heads out for an evening of mini golf. This seems an awfully short period of time for an entire miniature golf course to be built, up to code, and ready for customers. Additionally, Xander seems very familiar with the "5-par cuckoo clock," as if he'd tried it many times before.

The white shirt Joyce is wearing in the picture on Ted's desk is the same white shirt that she wears at the dinner table in the next shot.

In the classroom where Giles talks with Ms. Calendar, there's Hebrew writing on the blackboard behind him, saying: "Everyone's smart, everyone's wise!", "Torolet", and "Michael Greg Saint Jones".

When Ted gets up from his work station, he marks the board for his 25th sale. But as Buffy skulks her way to investigate his cube, the mark on the board is gone and he's back at 24 sales.

The way Xander holds his flashlight when they are searching Ted's place changes from shot to shot. It also changes from being off before he opens the closet, to on when he opens the closet.

When Ted hit Buffy the first time, it looks like he hits her on the left side of her face. But when the Detective asks her where Ted hit her, she points to the right side of her face.