Knever

The Courtship of Wyatt's Father - S6-E16

Other mistake: When the Darklighter shoots Leo in the attic on the Ghost Plane, the arrow goes all the way through him. He wasn't shown to be using anything other than a normal Darklighter Crossbow, and there wasn't any evidence that, since Leo and Piper were still alive, that the physics of the Ghost Plane are any different from the Normal Plane. Yet, in every other instance of someone getting shot with an arrow from a crossbow, it never, ever penetrates the person's body, and always get stuck.

Knever

The Courtship of Wyatt's Father - S6-E16

Revealing mistake: Just after Piper and Leo are taken away, Paige orbs down to the ground and runs up to Pheobe, places her hand on her, and shows a blood-covered hand showing that Pheobe's been injured. But before it's shown, while Paige is running up to Pheobe, you can see Paige deliberately keeping her hand closed and facing away from the camera, because it's already there when she orbs down.

Knever

Chris-Crossed - S6-E10

Plot hole: It's shown with the spell that the Halliwells leave for Chris in the attic that if something happens in the past, the future will immediately reflect that change. Chris had changed so much in the past that there should have been at least one thing different that mildly surprised him, even if he was careful to not give too much information to the sisters about the future.

Knever

Love's A Witch - S6-E5

Continuity mistake: When the main Calloway throws the clear bottle with the green potion at one of the enemies, the shot cuts and it's now become a white bottle.

Knever

A Witch in Time - S5-E8

Character mistake: When Miles is shot, the cops apparently don't think it's necessary to tend to him to see if he's okay.

Knever

The Fifth Halliwell - S4-E16

Visible crew/equipment: Just after Paige orbs into Phoebe and Cole's hotel room, a boom mic can be seen at the top of the screen.

Knever

Ex Libris - S2-E19

Revealing mistake: When the pawn shop owner jumps through the glass door, it is painfully obvious that it's a stunt double.

Knever

Animal Pragmatism - S2-E13

Revealing mistake: When Phoebe opens the cupboard and the human pig falls on top of her, you can see that it's a stunt double in the far shot.

Knever

Awakened - S2-E12

Visible crew/equipment: Just after Prue projects herself into the attic, we see a shot of a patient in the hospital, and a boom mic can be seen at the top of the screen for a short moment.

Knever

Awakened - S2-E12

Continuity mistake: Just after the girls are quarantined, we see the ninja sneak into the little boy's room. He uses the sword to keep the door from closing, and some blood drips onto the floor. Two shots later, we see the same floor and the blood is gone.

Knever

P3 H2O - S2-E8

Other mistake: When Leo orbs into the house after Dan comes up, Piper freezes Dan and closes the door. As the girls and Leo are talking, Dan's shadow can be seen through the stained glass window moving slightly.

Knever

Morality Bites - S2-E2

Visible crew/equipment: Just after Piper freezes the security guard after she and Prue enter the prison, they are walking along a corridor and the shadow of a boom mic can be seen in the top left quadrant of the screen.

Knever

Which Prue Is It, Anyway? - S1-E16

Revealing mistake: When Pink Prue is stabbed, they show the warlord over her, with the sword supposedly having stabbed her body. It is very obvious that the sword is not actually in her, but about a foot away from her body, closer to the warlord.

Knever