Xander stakes a vampire in the stomach, yet the vamp still dies.

Why are Sunday’s vampire gang living in a house with a giant skylight?

The stoner vamp is packing Eddie’s stuff by the sink. After a quick cut to the stereo that the other vamp is stealing, the stoner vamp is shown sitting at a desk, just finishing the goodbye note.

When the vampires clean out Eddie’s room, you can see them reflected in the mirror above the sink.

In The Yoko Factor, Angel cannot enter Buffy’s dorm room without invitation, so how did Sunday’s vampires get in to steal her stuff in The Freshman? This doesn’t count only for Buffy - the vamps are able to access Eddie’s room as well, and presumably they can get into the …

In the scene in which Buffy tries to sleep while Kathy snores, Buffy’s bedcovers are high up her body during close-ups but quite a few inches lower in the longer shots.

When Faith asks Buffy about her hardest kill, Buffy is about to tell her about the Three (who attacked her at the beginning of the episode Angel) but in fact Buffy didn’t kill the Three. She just ran away from them and they were killed by Darla.

When Mr. Trick orders a soda, he is told it is 89 cents. He hands over a note (lowest denomination: $1), but receives no change.

Xander and Cordelia are in the kitchen fighting a zombie.They pin the zombie down and Xander tells Cordelia to hurry and go help Buffy, as he holds the Zombie down. When Cordelia reaches the front door, Xander is already helping Buffy hold the door shut as if he has been …

Why is there no noise in Buffy’s room from the massive party downstairs? Her door is wide open but we can’t hear anything of the party.

Buffy goes up to her room to pack, she leaves the door slightly ajar. In the next shot, the door is wide open.

When Xander asks for a vote on how to celebrate Buffy’s arrival home, Willow raises her hand with a pencil in it. In the next shot, the pencil is gone.

Buffy sets the table for six but Joyce invited eight people to the dinner party (including Buffy, Joyce, Giles, Willow, Xander, Cordelia, Oz and Pat).

When Buffy fights the demons in the hell dimension, she’s wearing white trainers. Then when she climbs the rope to escape the dimension, she’s wearing cream canvas shoes.

When Buffy saves the old man from the oncoming car, you can see her stunt double’s kneepads right before she’s hit. In the first shot of her on the ground after being hit, you can tell that her uniform skirt has been fastened to her legs like shorts.