Continuity mistake: While Marty is sitting with Eddie on his lap and talking to Niles, the dog's blue kennel tag goes from above Marty's hand to under Eddie's chin from one shot to the next.
Continuity mistake: Throughout the Christmas parade we can see that the headphone/microphone is on the left side of Frasier's head. During the first break just after one of the crew members is telling Mary that her improv is really good he tells Frasier to lighten up. Just after he says this you can see that the headphone/microphone is now on the right side of Frasier.
Continuity mistake: Kelly comes over to Frasier's to read a mock script for the Xmas parade Frasier wants to co-host. She puts her purse next to her on the couch but never opens it. Suddenly reading glasses appear next to the purse, which Kelly subsequently puts on to read.
Continuity mistake: Marty gives Niles a mug which says "World's Greatest Psychiatrist." He puts it down on the coffee table with the lettering facing the camera. He then leaves with Daphne and a few shots later, we can see the mug again, but it is turned around and we see the blank side. When Frasier leaves the apartment, it's back in its original position. Nobody ever touched it.
Continuity mistake: Frederick is visiting and sitting on Frasier's couch with headphones on, playing a Gameboy. Frasier pulls off Freddy's headphones, which then lie around his neck while Frederick continues to hold the Gameboy. In the next shot, the headphones and Gameboy are on the coffee table and Freddy is sitting quite a bit to the left of them.
Continuity mistake: Martin is sitting on the coffee table hugging the puppy who is nuzzling his face. He says "No" to Roz and in the next shot the puppy is no longer near his face.
Continuity mistake: Frasier has a college catalogue that he takes over to the phone to call for information. Between the time he puts the catalogue next to the phone to the time he makes his call, the page changes, even though he doesn't touch it.
Continuity mistake: Roz takes the puppy from Marty and puts her hands around its hindquarters, but in the next shot her hands are up around its front legs. There was no time for any change of position.
Continuity mistake: In class, Frasier passes a note to Niles who folds it in half. The teacher grabs it away from Niles, and unfolds it himself - but it is now folded in four, not in two.
Continuity mistake: During the opening credits, Frasier and Roz are in Cafe Nervosa talking, and Niles joins them. As they talk, Roz's paper napkin goes from being scrunched up to lying flat, to crumpled, from shot to shot.
Continuity mistake: While Frasier is singing on-stage to Monica, a shot shows Roz from the back, and her left hand is on the table - but in the next shot her hand is stretched out holding her date's hand.
Docu.Drama - S8-E16
Continuity mistake: When Frasier is in the conference room with Roz, his binder changes from shot to shot. Sometimes there are 4 brightly coloured tabs at the top, sometimes only 2. The same shots show a change in the papers on the table too.
Docu.Drama - S8-E16
Continuity mistake: When Martin is eating at the coffee table, you see the front of the tomato sauce/ketchup bottle, then the back, then the front again. Also the spice that was on the table moves without anyone touching it.
Docu.Drama - S8-E16
Continuity mistake: In the conference room, Frasier says, "I just said that," and the shot shows his arms resting on the table with his hands up, gesturing. The next shot, from the side, shows him leaning back in his chair with his arms right off the table. The shot then goes back to the original position. There was no time for him to move naturally.
Docu.Drama - S8-E16
Continuity mistake: Frasier is holding a paper with his story on it as he is talking to John Glenn in the conference room. The shot changes as Glenn says, "I don't want to go behind someone's back", and Frasier's hands are now clasped in front of him.
Docu.Drama - S8-E16
Continuity mistake: When Frasier is in the boardroom with Roz and her production team, Frasier is writing in a binder, which is on top of a couple of books. In some shots we see a couple of different books in front of him on the table. One of them is called "Mars," which he had put back in his briefcase at the beginning of the scene.
Forgotten But Not Gone - S8-E18
Continuity mistake: While Marty and Frasier are eating Fredericka's cooking, Frasier puts his knife down on his right, then switches his fork to his right hand. After he says "motion carried," the shot shows his fork back in his left hand.
Continuity mistake: In the opening scene, Roz is in Cafe Nervosa reading a children's book. Frasier comes in and she puts the book behind her, presumably into her purse which is hanging on the chair. But throughout the scene, the book is sitting on the table in front of her.
Continuity mistake: When Frasier is talking to Claire in the store by the CD organizers you can see a wedding band on this finger. In the next shot it is not there and then it is back on again.
Continuity mistake: Roz and Frasier are at Cafe Nervosa and she is telling him about her dream of dancing with Bruce Springsteen. At one point, her hand is on top of her coffee mug and then she lays it on the table; the next shot shows her hand on the cup again, with no time to move it naturally.
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.