Season 1

Welcome to the Hellmouth
» After Buffy follows a vamp into the back of the Bronze she breaks off the leg of a stool to use as a weapon. When she raises it up to Cordelia, it turns into a perfectly chiseled stake.

Angel
» Darla opens Angel's fridge to reveal hospital-issue packets of human blood, but later we find out Angel refuses to drink human blood.

The Puppet Show
» Buffy's gravestone reads that she was born in 1981, yet in "I robot, You Jane", we learned that she was born in either 1979 or 1980.
-Kallie L

Invisible Girl
» Marcie puts numbing medicine on Cordelia's face. If she had put a numbing medicine on, how is it that Cordelia can still make facial expressions and how can she talk to Buffy?

» While Cordelia is giving her May Queen speech, Principal Snyder keeps appearing and dissappearing behind her
-Kallie L

Prophesy Girl
» While Buffy is lying facedown in the water, her hair changes styles... from being on top of her head, to being around her shoulders.
-Kallie L

Season 2

School Hard
» Shen Spike and Dru invade parent/teacher night, Spike meets Angel and calls him his sire but in a later episode of Angel called "Darla", he has falsh backs of Drusilla siring Spike.
-Vicky MacKenzie

» It has been said on the show vampires do not breath but spike smokes. How can a vampire smoke if he doesn't breath?
-Littleitaly96

Halloween
» A vampire sneaks into Buffy's house and is hiding in the stairwell, which is impossible because he was never invited in.

» Giles tells Willow to leave Ethan's shop, but as she leaves you can hear the door slam behind her, but Willow was a ghost for halloween, and cannot open the door.

What's my line pt 2
» Their is a scene in the library where Cordy finds another one of bug guys worms in her hair and flops it onto an open book. Xander then closes the book to squash the worm. When the book is closed it reveals a black and gray cover with the title "Biology" But in another immediate camera shot the book has a plain red cover.

Ted
» When the guy asks Buffy where Ted hit her, she points to the wrong cheek
-Kallie L

Innocence
» When Buffy is going to blow up the Judge, Dru & Angel run but before Dru jumps she is wearing high heels. When she jumps she is wearing slippers and when she lands she is wearing high heels again.
-Tabbie

Phases
» When wolf-oz chases Willow, he leads her through a forest where she trips and falls. When she gets up she has a huge dirt stain on her clothes. When she gets to the library, the stain is nowhere to be seen.
-Jessica

» When Giles loads the tranquilizer gun, the glasses keep appearing and disappearing on his face.
-Kallie L

I Only Have Eyes For You
» in the opening credits, Meredith Salenger's last name is misspelled "salinger".
-Kallie L

Becoming
» They show that Angel saw Buffy at her old high school when she first learned she was the slayer. But in "Welcome to the Hellmouth" when he first meets her in person he says, "I thought you'd be taller."

Season 3

Anne
» While Buffy was fighting the Leather faced dudes she was wearing an Sketchers type of shoe, but with she was climbing the chain to get away from them the stunt double was wearing totaly different shoes.

Revelations
» When the ex-watcher Gwendolyn Post puts on the glove of Myhnegon you see the spikes in the glove cut into her arm. On the last claw you see the open cut appear on her arm before it even clamped on.

Lover's Walk
» Lover's Walk: When Spike brings Willow and Xander into the factory, he grabs Willow's hair toward him and her hair goes all over her face. When the camera gets a close-up on Willow her hair is pulled back.
-Jeanne

The Wish
» In the episode they never show luke, jesse or darla. If buffy never came to sunnydale jesse would still be a vampire and Darla and luke would still be alive... well, still vampires anyways.

Amends
» If Buffy left her house at around 8 or 9 pm to run to Giles's, and dawn was around 6 am, how could it have taken her almost 10 hours to find Angel?

The Zeppo
» When Xander and Jack are in the boiler room and they are having their conversation the clock is counting down, and when it gets to five it goes to a close up of one of them and you can hear the bomb clock ticking, and it ticks down to one and when you go back to it, it says it has seven seconds left. When before it said five, and it had counted down to one and they should have been blown to bits.
-The lameness

Choices
» Near the end when Willow tells Buffy she is staying in Sunnydale and then Buffy jumps on her, Buffy gets up and says something but notice how her mouth doesn't move.
-Jeanne

Season 4

Living Conditions
» Buffy is asleep in bed in her dorm. She hears Kathy snoring and turns to look (note position of covers - down to her waist) the camera focuses on Kathy and in the background u can see Buffy's bed covers are up to her neck. Camera goes back to Buffy and it's back in the same place.
-Jessica

In the Harsh light of Day
» when Spike and Harmony have found the cave he stakes her and then realizes that she has the gem on her finger. He takes off his chain but in the next shot when he takes the ring of Amara off her he still has it on and When he jumps down the tunnel he hasn't got it on.
-Talisha

Season 5

Fool for Love
» Spike is fighting the Slayer during the boxer rebellion, and part of the wall blows up and a hole appears. On the next shot the hole is not there, then reappears then disappears again before finally staying for the rest of the sequence
-Nikki

Season 6

Fool for Love
» In the scene when Tara sings to Willow notice how her hair is in a simple middle part, but when they are on the grass as she turns to their apartment it is magically in a zigzag part.
-Miss Vamp

Smashed
» Spike said that he was going to dismember Mr. (Boba) Fett. Then either Jonathan or Andrew mentioned that it was a 1978 special edition, Seeing that Boba Fett wasn't a character in Star Wars until 1980 it could not have been the toy of that year.