Continuity mistake: After Frasier is left alone in the apartment, we can see a glass of sherry and a can of beer on the coffee table, but neither item was on the table when he was talking to the others before they left the apartment. Roz's purse also shifted from the couch to the little glass table during the shot change. (00:21:20)
Continuity mistake: Niles goes to Frasier's apartment and meets Tom, the new station manager. Niles is talking to him with his hands clasped in front of him but in the next shot his hand are clasped behind his back.
Agents in America, Part III - S2-E22
Continuity mistake: As Bebe says, "Darling, what you have is a fever" to Frasier, her hands are on the table in front of her. He says "what?" and the shot shows her elbows on the table and her hands are in the air, with no time for natural change.
Continuity mistake: There is a bag of chips on Marty's little table that goes from being open but almost flat to being open much wider and the bag is very rounded, from one shot to another, but no one touches it. (00:18:05)
You Scratch My Book... - S2-E15
Continuity mistake: While Niles is filling out raffle tickets on the coffee table, sometimes the envelope is on his left and sometimes almost completely out of sight on his right, although he never moves it around.
Continuity mistake: Martin is drinking a glass of milk which is between his arm and a bowl of chips. Suddenly the milk is sitting well to the left, even though he didn't touch it. (00:14:35)
Duke's, We Hardly Knew You - S2-E5
Continuity mistake: About two thirds of the way through the show, Marty and Frasier are talking in the living room. Marty is sitting in his chair with a glass of milk. One shot shows him with both hands on his milk, and then he puts his left hand on the arm of the chair. In the next shot his hands are around his glass of milk again.
Continuity mistake: The waitress brings Frasier his coffee just as Niles begins to say "Anyway," and she is back behind the counter as he finishes the word. There just wouldn't be enough time in real life to do this. (00:03:55)
Agents in America, Part III - S2-E22
Continuity mistake: At the beginning of the show, Niles and Frasier are in Cafe Nervosa. As Niles says "Matthew Pimm tried to stage a coup", we can see Frasier's hand on his napkin next to his mug. As the shot changes, suddenly both of Frasier's hands are on his mug.
Continuity mistake: As Frasier is leaving Roz's apartment, we can see her crutches behind her, leaning together and upright against the wall. In the next shot one has noticeably changed position but they go back to their original state a couple of shots later. (00:04:35)
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: 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)
Continuity mistake: During the scene where Niles tells the chef to serve the souffle in a large bowl, there is a large bowl of food next to him with no utensil in it. When Niles says "Table Twelve is still waiting for their entree", there is suddenly a utensil sticking up in the center of the bowl.
Flour Child - S2-E4
Continuity mistake: Daphne asks Frasier about his son's birth and he says that he held Frederick for the first time while Lilith was screaming at him that he would never be allowed to touch her again. But in Cheers, in the episode "The Stork Brings A Crane", we learn that A) Frasier was not present when Frederick was born and B) When he finally got to see his son for the first time, Lilith was not angry with him.
The Unkindest Cut of All - S2-E2
Continuity mistake: While waiting at the vet's office the first time, Eddie's tongue goes in or out of his mouth depending on the angle several times.
Adventures in Paradise (1) - S2-E8
Continuity mistake: When Frasier is first looking at the magazine article featuring Madeline, we can see the page opposite the one he's looking at. The next shot shows a different page, even though he is supposedly looking at the same one, all the time exclaiming about how great she is.
Continuity mistake: Frasier is holding a plate of food in the kitchen, but after Roz comes in with the exploded cherries jubilee all over her, the food on his plate has changed completely. It could not have been affected by the cherries jubilee explosion as he had his back to the door when that happened.
Continuity mistake: Just before Frasier says "What I want is to be left alone", Roz, Niles, Marty, and Daphne are standing at the door. The shot goes to Frasier, and then back to them, and they have all changed positions, with no time to have done this naturally. (00:21:25)
The Show Where Sam Shows Up - S2-E16
Continuity mistake: Near the end of the show, at the end of the scene in Sam's hotel room, Frasier sits down on the couch; his raincoat is over his hands and wrists. The next shot shows his left hand and arm lying on top of his coat.
Continuity mistake: In the scene where Daphne, Niles, and Frasier are at the table trying to solve the old murder case, the string and paper tag on Daphne's teabag changes sides in her mug.
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.