Continuity: When Prue runs into Susan Trudeau at the restaurant, she asks if she's Andy's sister, only to find she's his ex-wife. But Prue knew Andy all through high school - she would have known he didn't have a sister.

Continuity: When the Charmed Ones run up to the bedroom at the end of the episode, Prue can't find the poignard as she rummages through her black purse. Elliot, who has fallen from the bed, suddenly picks up the poignard from the ground, where it is sitting next to a black purse. The way the shot is set up, it looks as if the purse has fallen there, and the poignard fell out. But since Prue is still holding the purse that the poignard was supposed to be in, and she hadn't been to that room before, the poignard's presence on the floor is completely inexplicable.

Continuity: In this episode the truth spell is before the demons page in the Book of Shadows, but in 'Out of Sight' the truth spell is after the demons page.

Continuity: In the teaser, the demon attacks Dr. Mitchell, killing him and also destroying his irises. His eyes turn white, and later dialogue confirms that the irises were gone from his eyes. However, when the Charmed Ones find his corpse, his eyes are open and his irises are visible.

Continuity: When Phoebe asks Piper what she thinks of her boss, you can see that Holly's tattoo has been covered up, because that part of her wrist is darker than her skin.

Continuity: When Prue describes the way the warlock Matthew traveled instantaneously, Miranda tells the sisters that it's called blinking, and that Matthew "must have copied it from another witch." But later in the series, every warlock encountered by the Charmed Ones had the ability to blink, and it was considered exclusively a warlock ability, meaning that no witch would have had it.

Continuity: At the end of the episode, when Leo and Piper are saying goodbye he reaches out and touches her face, but when the angle changes his hands are instantly back at his side.

Audio problem: Approximately 10 minutes into the episode, the Haliwells are in the kitchen getting breakfast. While sitting at the table, Piper is heard to say "it's not, it's fine", but her lips don't move.

Continuity: In this episode, Leo tells Phoebe that white lighters are sent to their charges by "a group of elder white lighters known as the founders." However, by later seasons in the series, the word "founders" was never used. The leaders of the white lighters were simply known as the "elders."

Visible crew/equipment: In the scene where Prue's guests are about to leave for Quake there is a crew member visible at the door and opening the door and walking out.

Continuity: At the beginning of the final scene in the attic, the view from the window prominently features the Transamerica Pyramid. At the end of the scene, the view is completely different, showing the Ferry Building and the Bay Bridge.

Plot hole: According to this episode, the binding spell that Grams cast on the sisters when they were children would be automatically unbound when she died. If this happened they would not have needed to read a spell to gain their powers in the pilot episode 'Something Wicca This Way Comes'.

Continuity: In this episode, the sisters go back in time to late March 1975. On the family tree it says that Piper was born on August 7, 1973. So she would be 1 and 1/2 in March 1975. But she looks at least 2 years too old.

Continuity: Prue finds Brendan, as a warlock, over the corpse of Father Austin. He runs away and she pursues him. He insists that he "didn't hurt Father Austin. [He] found him like that." Prue counters, "Before or after you turned into a warlock?" His response is, "After. When I saw what [my brothers] did to him, I was crazed. The rage turned me into a warlock." So doesn't that mean that he found Father Austin before he turned into a warlock, not after?

Continuity: When Brendon is about to sacrifice the young woman he has the tip of the dagger touching her chest in one shot and in the next shot, when Prue breaks open the door, it is about six inches above her. Also, when the victim is talking to Andy she says that she felt the tip of the knife, that he was about to drive it into her, but he was stopped by three woman.

Other: In this episode when Piper says the power switching spell so that she can heal Leo it switches not only her and Leo's powers, but also, Prue's and Phoebe's; however in future seasons it only affects the witches it is meant to effect.

Continuity: In this episode Leo specifically tells Prue, Piper and Phoebe not to touch the Darklighters arrow because it is poisonous however in future episodes/seasons, the Darklighter arrows are only poisonous to Whitelighters.

Plot hole: In the second season, Leo was suspended from his position as a whitelighter for a period of several weeks. But why didn't the Charmed Ones receive a substitute whitelighter during that time?

Continuity: At the spiritual place Phoebe had tan marks, but later on she didn't have any tan marks.

Continuity: Right after Grams says "I Love You" to the sisters at the end, we see a close-up of Phoebe. In this shot, you can see the tear in Prue's shirt, but immediately afterwards, there is a shot of Prue where it appears to be sewn or something.