Where Every Bloke Knows Your Name - S5-E10
Continuity mistake: When Daphne is playing darts with Frasier, he says, "I scored again," and we see her sweater sleeve is pushed up her arm. But when she comes back with, "That's not something we hear very often," the sleeve is completely covering her arm. In the next shot, it's pushed up her arm again. There was no time for the adjustment.
Continuity mistake: Niles gets a pair of scissors to snip off a thread on his pants. He puts them on the ironing board, but after he passes out, they are on the credenza behind the couch. Later, they are back on the ironing board. (00:03:00 - 00:04:05)
You Can Never Go Home Again - S3-E24
Continuity mistake: Niles and Frasier are at Marty's old apartment and Niles sits down on the couch. Eddie is sitting next to him, staring. During this scene, the shots of Eddie show him moving from fairly close to Niles, to about 10 inches away, and then back again. He has no time to change position naturally.
The Show Where Diane Comes Back - S3-E14
Continuity mistake: Frasier, Martin, Niles, Daphne, and Diane are having dinner at Frasier's and he gets up to get dessert. Niles offers to help him and puts his table napkin in his chair. As he walks towards the kitchen, though, the napkin is lying next to his plate.
Continuity mistake: Frasier is at the restaurant trying to stop Lana from going to talk to Kirby. She has her purse under her arm but the next shot shows her holding it by its strap.
The Friend - S3-E11
Continuity mistake: In the last scene, at the Cafe, Bob puts a dollar on the table in front of him. A waitress brings a cup and puts it down - the dollar has disappeared. In subsequent shots it reappears.
The Friend - S3-E11
Continuity mistake: Frasier and Bob are in Cafe Nervosa talking. Bob has a book in his hand. In another shot he is moving his hands around, even though there was no time for him to have put the book down.
Continuity mistake: In an early scene, Frasier is in his apt. talking to Marty about how Niles is behaving. The cracker package on the table changes position noticeably without Frasier having touched it.
The Show Where Diane Comes Back - S3-E14
Continuity mistake: Diane is sitting in Frasier's apartment, at the dining room table, talking with him. Her hands are in her lap in one shot and then up in front of her in the next - in mid-sentence.
Continuity mistake: When Clive arrives at the apartment, he puts his coat over the front of the arm of the couch. As the scene progresses and Marty tells him about being an astronaut, the coat is suddenly on the back of the arm of the couch, even though no one moved it.
A Man, a Plan and a Gal: Julia - S11-E2
Continuity mistake: As Frasier is protesting his love for Julia and says "the essence of music", Daphne's hands go from being on the couch to being folded on her knees, without enough time to do it in real time.
Continuity mistake: When Martin and Frasier are in Cafe Nervosa and Marty is lecturing his son about eavesdropping, his newspaper moves a few inches, from being on his left to being right in front of him, even though he never touched it.
Continuity mistake: Niles has the "hot buns" pads under his right arm and his mittens in his right hand. The next shot shows he already has a mitten on his left hand even though there was not enough time for him to put it on. (00:10:25)
Continuity mistake: When Frasier and Niles are in Cafe Nervosa, just as they are talking about Stanley Barrister, Frasier lays his hand on his knee, but in the next shot it is up on the table.
Frasier's Imaginary Friend - S5-E1
Continuity mistake: At the beginning of the show, Frasier is on the plane sitting next to a woman who finds out he's only on there because he wants to pursue her. She asks the flight attendant if she could change seats - but the shot before showed that the attendant had completely walked by their seat but when the woman asks her if she can move she has not passed their seat yet.
Frasier Gotta Have It - S5-E19
Continuity mistake: At Caitlin's apartment, Frasier tells her "our relationship - we've never talked about it" - she has her arms around his neck and he is holding one of her hands in both of his - but in the next shot, both of her hands are under his hands.
Three Dates and a Breakup (1) - S4-E19
Continuity mistake: After Roz says to John, "I hardly recognized you with that mustache", one hand is up by her chest and the other is on her knee, but when the shot changes, both hands are clasped together.
Legal Tender Love and Care - S8-E6
Continuity mistake: As the waiter fills up the champagne glass in front of Frasier, in one shot the cloth around the bottle is simply folded over and in the next shot it is more open and draped around the bottle.
To Kill a Talking Bird - S4-E14
Continuity mistake: Niles has his dog over at Frasier's. He sits down on the couch and the dog is facing the door. The next shows the dog standing about two feet away and facing the balcony - and the third shot shows her back in the first position. There was no time for her to change positions naturally.
Continuity mistake: After Frasier passes the pink box with the birthday cake over to Daphne the box is closed. But when the doorbell rings the lid is about halfway open, with no time for this change. (00:04:15)
Answer: In the last episode, they explained that Tossed Salad and Scrambled Eggs is a metaphor for the mixed-up people to whom Frasier dispenses his radio psychiatric advice.