Continuity mistake: Prior to bringing Ray up for the role-playing exercise, the parenting teacher erases a circled phrase from the chalkboard. Throughout the scene, the chalked circle flips several several times between being totally erased and having a faint outline left over.
Continuity mistake: When Robert is in Debra and Ray's kitchen, as they talk Debra holds a plate with a slice of meatloaf on it. When she finally places the plate on the table, the piece of meatloaf Ray eats is different.
The Sister - S4-E6
Continuity mistake: Marie comes over with a cake shaped like a cross. In almost all the scenes where the family is sitting at the table different pieces of cake are missing. In some of the camera angles there are no pieces of cake cut from the bottom yet when the cake is seen from other angles there are.
Continuity mistake: The large spoon and fork in Frank and Marie's kitchen change positions, right to left, and up and down. In some episodes the fork is on the right, and in others it is on the left. In other episodes, the fork is higher or lower than the spoon. At other times, the spoon and fork seem to be larger than at other times. It is obvious when she removes one of the utensils that they have never been moved - The Wallpaper underneath is a different shade from fading. If these were moved at subsequent times in the supposed feud, the difference in wallpaper fading would be seen.
Separation - S5-E23
Continuity mistake: In the scene where Debra tells Ray her parents have separated and he laughs, later on in this scene he tells Debra that he got free candy from the broken vending machine at work. When Debra leaves the room, Ray starts taking more candies out his pockets and throwing them on the bed. Take notice of the position of the sweets on the bed. Now just after the close up scene of Ray scratching his head, look at the position of the sweets. Totally different. One or two are actually closer to the end of the bed, whereas in the scene before, they were more further on. (00:52:50 - 00:53:55)
Continuity mistake: Amy's brother was called Russel. In later episodes he is called Peter.
Frank Paints the House - S5-E24
Continuity mistake: Inside the kitchen, the back door is perpendicular to the sink's wall. On the outside, the door is part of one continuous wall.
I Love You - S1-E2
Continuity mistake: During the bathroom scene in this episode, two wall tiles immediately below The Shower head keep appearing and disappearing between shots. (00:10:55)
Continuity mistake: When Ray is yelling at the kids for throwing his golf clubs down the stairs, two stuffed animals fall down from the shelf. After Ray is done lecturing the kids, you can see the animals are back on the shelf when it shows Raymond talking to Debra.
Continuity mistake: In this episode, Frank celebrates his 65th birthday but in "Debra Makes Something Good" he says he is 64 years old.
I Love You - S1-E2
Continuity mistake: Towards the end of the episode, Robert comes into the kitchen and shuts the door. As everyone is saying "I Love You" the door is closed, then when Robert hugs Ray it is open, then closed again. (00:16:00)
I Love You - S1-E2
Continuity mistake: During Ray and Frank's discussion on saying "I Love You" in the bathroom, the grout design on the wall and the towels in the closet behind Frank change back and forth.
Continuity mistake: On Ray's house, the small window at the base of the stairs is not seen in the outside view typically shown before and after commercial breaks.
I Love You - S1-E2
Continuity mistake: Debra is sitting up in bed holding a magazine and talking to Ray. She quickly puts the magazine down in her lap as she says something to Ray but then in the next shot, she's holding the magazine up again. (00:05:25)
Continuity mistake: After their engagement in 2-25 "The Wedding", Debra introduces Ray to her priest Fr Hubley but in this flashback episode "The First Time" Marie brings Fr Hubley to Debra's apartment to meet her. The priest mentions that "he's known the Barones for quite some time."
I Love You - S1-E2
Continuity mistake: In the pilot, Ray and Debra's bedroom has no windows by the bedroom door, and the closet and bed are near it. In episode two, windows appear near the bedroom door, and the closet is on the opposite side of the room. (00:05:30)
The Tenth Anniversary - S4-E16
Continuity mistake: In this episode, it is snowing outside but in "The Wedding Pt1" the date that they book for the reception is on the 17th of June.
Continuity mistake: In "The Suitcase" Ray says he bought wooden spoons and forks. In other episodes the spoons and forks are metal.
Continuity mistake: Throughout the series when the exterior of Ray's house was shown there are steps leading to the front door. In one episode Ray's mother drives a car through the wall and when she drives off there are no steps. Where did they go?
Answer: War.
By whom?
Edwin Starr.