The Seal Who Came to Dinner - S6-E8
Continuity mistake: Frasier and Niles are in Cafe Nervosa talking about Niles' Dinner Party. During the scene, sometimes the lid of Niles' coffee up is on, and sometimes it is off, even though Niles never touches it. (00:02:35)
Merry Christmas, Mrs. Moskowitz - S6-E10
Continuity mistake: The first time Helen and Faye try to leave, Helen tucks her purse under her left arm but in the next shot we see her move the purse from her right to her left arm again.
Continuity mistake: When Niles and Roz are talking at the cabin, in some shots her sleeve is pushed up her arm and in some it is down to her wrist, with no time for her to change it.
Shutout in Seattle (2) - S6-E24
Continuity mistake: After Niles breaks up with her in Cafe Nervosa, Kit knocks down a chair as she storms out. Frasier goes over to comfort Niles - he should have to move the chair or climb over it, but the chair just isn't there anymore.
When a Man Loves Two Women - S6-E21
Continuity mistake: When Frasier is in his apartment talking to Niles, Marty, and Daphne about choosing between Cassandra and Fay, the milk on the breakfast table changes position several times - from behind the coffee pot and near Daphne to the other side of the coffee pot in front of Martin.
Continuity mistake: In the opening scene, Roz and Frasier are in Cafe Nervosa, and she is snoozing, while a half-eaten muffin sits in front her. As she wakes up and talks to Frasier, the muffin appears whole again. She leaves and Martin comes in and takes her seat. A shot then shows the muffin as half-eaten again, even though no one has touched it.
Continuity mistake: In Cassandra's hotel room, Frasier gets two small bottles of brandy and manages to pour them into separate glasses while holding both bottles. Pretty hard to do. He never puts one down and grips it to open it.
Shutout in Seattle (2) - S6-E24
Continuity mistake: When Faye prepares to leave Frasier's apartment, she walks by the bookcase and we can see a small red and white item sitting on the top. When Bonnie walks by, right after her, it's no longer there.
Continuity mistake: As Cassandra asks Frasier if he's coming to bed, she lies down on her left side. The next shot shows her lying on her back, even though there was no time to change positions. (00:15:25)
Shutout in Seattle (1) - S6-E23
Continuity mistake: Donny and Daphne are talking to everyone at breakfast and the positions of the paper bag and the table napkin in front of Donny change from one shot to the next. (00:06:50)
Continuity mistake: At the end of the scene Niles opens the apartment door and waves his arm; the little white cloth is thrown and lands under him as he faints and hits the floor. Eddie heads for the couch and the shot shows the white cloth on the floor in the hall outside the apartment door. (00:11:20)
When a Man Loves Two Women - S6-E21
Continuity mistake: Niles is trying to convince Frasier to play squash - he has his hands on the back of Frasier's chair. Cassandra comes out of the kitchen and we see one of Niles' hands on Frasier's shoulder. In the next shot, both hands are back on the chair, even though there was no time for this to happen naturally. (00:02:35)
Continuity mistake: Near the start of the show, Roz arrives at Frasier's with baby Alice. She is standing near the balcony door in her black gown when suddenly a white spit-up cloth appears on her shoulder that had not been there previously in the scene.
Continuity mistake: During the opening scene in the cafe, Roz is picking up and putting down her coffee & muffin, but all shots from behind show her holding the coffee.
How to Bury a Millionaire - S6-E7
Continuity mistake: Frasier and Niles are at the Shangri-La, looking at an apartment for Niles. While they are standing in front of the closet, sometimes the door is open (revealing the former tenant's clothes inside) and sometimes it is shut.
When a Man Loves Two Women - S6-E21
Continuity mistake: When Frasier and Fay are at her place talking on the couch, there is a throw that sometimes is at the end of the couch on the armrest and sometimes is on the back of the couch, behind Fay.
Continuity mistake: While Niles and Frasier are discussing Marty, we can see an old shoe on the footstool, but as the shot changes the shoe is gone and there is a newspaper there instead.
Continuity mistake: Eddie has been playing on Niles' couch, and the pillows are all over the place and there are a couple of other things on there as well. After Marty's chair arrives, Niles says to Frasier, "You have to take him back now," and suddenly the couch is all tidied up, with the pillows at the ends. A couple of shots go by and suddenly the couch is a mess again.
Roz, a Loan - S6-E9
Continuity mistake: In the scene where Niles, Frasier, and Marty are talking about the spa, the spa products on the coffee table in front of Niles and Frasier keep changing position.
Answer: It equals the record of James Arness of "Gunsmoke" for the actor who's played the same part on TV NOT in a soap opera. If you include soaps there are two main contenders - William Roache, who's been playing Ken Barlow in "Coronation Street" in the UK since 1960. Don Hastings has been playing Robert Hughes in US soap "As the World Turns" since 1960 as well.