Plot hole: It says on Mary-Alice's tomb stone that she died on September 26th 2004, which was a Sunday, yet in the first episode, she says that she died on a Thursday.

Continuity: Episode 2:20 - While Susan and Edie are at the Hooters style restaurant, the amount of beer, and amount of head, in Edie's glass changes from shot to shot; It's not because she is drinking it.

Plot hole: Episode: 1:23. Rex is in the hospital for having a minor heart attack and is awaiting surgery to receive a pacemaker. 1) He isn't connected to an ECG or any other heart monitor so no one is aware of his heart attack. 2) They ran blood tests and checked his potassium levels. They would have also checked the concentration of his medication in his blood. (This should have been done earlier in the season too when they first discovered his medications were not working.) Zero concentration of medication in his blood could throw suspicions on his wife just as easily intentionally giving him potassium.

Deliberate "mistake": In the episode where Mary-Alice Young's house is open for buyer's inspection, the phone number on the "For Sale" sign has been digitally blurred.

Continuity: Season 4, Episode "Mother Said": When Orson is on the phone with his lawyer, he sets down the notepad with a page half filled with writing at the front. However, later in the scene Edie walks into the room and the front page of the notepad is full of writing, plus there's an extra line in the first paragraph. No one was around to move the page as Orson was in the shower.

Other: Season 04, Episode 14: In the scene where Lynette and Tom are fighting about Lynette having taken Kayla to see a therapist, and Kayla walks away, you can hear Tom yelling about Lynette having a distorted reality and that she can't pull crap like that. In the scene where Kayla comes back into the house after conning the twins into jumping off the roof, Tom and Lynette repeat the same dialogue again.

Continuity: In season 4 episode 10 (Welcome to Kanagawa): Adam hands Katherine the note he found on the floor written by her aunt in a previous episode. Katherine is holding the paper up. When Adam walks around her in the next shot, the paper is gone and Katherine is only holding her keys/purse. The close up of Katherine (the very next shot) shows her holding the paper again.

Continuity: Episode "If there's anything I can't stand" - The amount of cream on Victors chest during his rubdown changes between shots.

Revealing: In episode "A Weekend in the Country," when Orson and Andrew are sitting in the diner, the same man in the green shirt keeps passing the window.

Continuity: Episode 2-20 At the Hooters style restaurant, Edie intentionally trips the waitress. When the waitress falls, there is a lettuce leaf in the small of her back. When she starts to jump up, the lettuce is now at the base of her neck.

Continuity: In episode "Like it was" when Gabby and Carlos are driving in the car, Gabby's hair keeps switching from behind her ear when the shot changes.

Factual error: Season 2, episode 20: Gabrielle visits Dale, her adopted child's natural father, at his high school and interrupts a pep rally for the football team's upcoming game. Dale, the team's Quarterback, even says that in the last game, he threw for 260 yards. The problem is that it is spring. Dale has just returned from a week in Florida for Spring Break. Football season is over. Basketball season should be over or ending soon. There couldn't have been a pep rally if the season is over.

Audio problem: Season 2, episode 13 "Silly People"; When Eva Longorea drives home her husband is talking to a man. Their lips move, but no sound comes out.

Continuity: Season 2, "One More Kiss": When Lynette sits with Gabrielle in the kitchen discussing the kiss, they're drinking shakes. Gabrielle is either holding her shake or it sits on the counter in front of her, repeatedly, depending on camera angle.

Continuity: In episode "The Gun Song, Free Part 2," when Gabby runs upstairs to confront Ellie, her headband is further on her head than when she runs into the bedroom.

Continuity: Episode 2-23: Caleb hits Melanie with a piece of lumber and she falls to the ground. She falls with her feet towards Caleb, but in the close up (and each scene after) her head is now towards Caleb.

Continuity: In episode Now I know, Don't be Scared. When Carlos walks in to talk to Gabby about staying with Victor, she is drinking a glass of wine. She drains the glass except for a small sip, when she puts the glass down it's half full.

Continuity: Season 2, Episode 20: When Gabrielle goes over to Dale to get him to sign the custody form for the baby; the sheet of paper is all creased and folded up. But when she shows it to Carlos it is not creased at all.

Factual error: In the ep in season four where Victor drifts ashore, someone calls the police officer at Gabrielle's home and informs him that Victor has been found. The officer answers the call, listens for about one second and then hangs up. In that one second he's gotten four sentences of information to pass on to Gabrielle about her husbands whereabouts. There wouldn't have been time to tell him so much in so little time.

Continuity: In "Getting Married Today," Gabby's hair in the beginning has her bun high on her head and her tiara is visible from the front. When Bree walks in, and when she overhears Victor and his father talking, her tiara is farther back on her head and no longer visible from the front.