Continuity mistake: At the beginning of the scene where the three Barone kids are singing along to the Hackidu song with Robert on the couch, the scene opens with a picture of the house from the outside, and it is light and not raining at all. Then, when Ray comes in minutes later, it is suddenly dark and pouring rain.
Other mistake: After Ray sticks his fingers in Robert's fruit loops, he runs and slips as he goes into the kitchen. You can see the rug has been wrinkled, but when Robert comes in, you can see the rug has been laid back out when he opens the door.
Revealing mistake: In the scene when Debra is yelling at Ray, Ray falls back onto the couch and then onto the floor. You can see a small gymnastics cushion on the floor to cushion his fall.
Confronting the Attacker - S4-E23
Other mistake: Notice Ray Romano's face in the opening scene, after Robert grabs him and kisses him. Ray is trying to look disgusted, but it is taking everything within him not to burst out laughing.
Continuity mistake: This is a flashback episode of Robert's Divorce - they show that Joanne dumped him because she didn't like their life together but in another episode, Ray says that Joanne dumped him for a guy that he arrested.
Continuity mistake: When Marie backs The Car into Ray and Deborah's house, the debris on The Car changes from shot to shot.
Meant to Be - S5-E4
Continuity mistake: When Robert stops Marie from calling Amy, he removes the phone from her hand and places it on the table where it rolls out of place. In the next scene, the phone is placed back where Robert put it before.
Continuity mistake: When the family is riding to the wedding, a bright orange sign is visible in the background. A few shots later, the same sign goes by again.
Continuity mistake: In the last scene in The Car, there were 5 of them driving to the event, then 6 driving back home.
Suggested correction: There were always 8 driving to the event and then 8 driving back.
Super Bowl - S5-E13
Factual error: Ray, Gianni, Robert and Frank are watching a football game when Ray gets the call from Newsday to cover the Friday press conference for the Super Bowl that weekend. There is a 2 week break between the AFC/NFC championship games and the Super Bowl, so there would be no NFL game on TV at the time. There would also be no NFL game on during the afternoon on a weekday.
Continuity mistake: In the episode "Traffic School," Robert notes that when he was young during a family trip he was left at a gas station in New Mexico. But in "Ray's Journal," he says that he was left at a gas station in Arizona.
Revealing mistake: Marie acts like she is reading from Raymond's diary, however from the angle that she's holding it, it's obvious that there's no writing on the page except for a standard header on every page. Raymond also doesn't write anything when she asks him to amend the entry.
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.
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)
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.
It's Supposed to Be Fun - S6-E8
Other mistake: After Geoffrey is fouled, he takes his free throws on the wrong end of the court.
Older Women - S6-E9
Visible crew/equipment: Someone appears behind the kitchen door, when Ray goes, "and I can see how that can make you all... Man-hatey...", and hangs around behind the door for several seconds. (00:15:55)
The Kicker - S6-E11
Visible crew/equipment: After Robert throws The Ball through the window, if you look between Ray and the door frame, you can see the arm and leg of the crew member that actually threw The Ball through the window. (00:12:15)
The Kicker - S6-E11
Revealing mistake: During the scene after Robert breaks the window with the football, if you look close at the broken window, you can tell that it is some sort of thin material and not glass. Around the break the "glass" is flapping in the breeze like paper. (00:12:20)
Continuity mistake: In this episode, while Ray is telling Marie her faults, he has an almost empty glass. In the next shot, his glass has been topped-up slightly without him or anyone else doing so.