Three Dates and a Breakup (1) - S4-E19
Continuity mistake: Frasier and Daphne are on the elevator; Daphne has a bag of groceries. In some shots several inches of a loaf of French bread is seen, but when she gets off the elevator the bag is sealed up with no bread visible. The bread becomes visible again in later shots as they talk at the door and go into the apartment.
A Midwinter Night's Dream - S1-E17
Plot hole: Niles phones Frasier to tell him Daphne is staying at his place because of the storm. Frasier's phone is in its usual place on the room divider/bookcase behind Marty's chair. After Frasier and Marty leave to rescue Daphne, Niles phones again and Eddie is standing up on a chair staring at the phone. Only problem is, the phone is over on Frasier's desk, where there normally is no phone. If he did have a phone there, it is only a few feet from the other one, which makes no sense.
Continuity mistake: Early in the show, Frasier is at home - the rest of the gang have surprised him with a birthday cake. In one shot the candles are burning on the cake, in the next Frasier is cutting the cake and the candles have disappeared, with no time allowed to remove them.
Fool Me Once, Shame on You, Fool Me Twice... - S2-E14
Continuity mistake: In Cafe Nervosa, Frasier has just checked the priest's briefcase, think its his own. In one shot his hands are down by his side but in the next split second his left hand is up at his neck and then patting his tie.
Shutout in Seattle (2) - S6-E24
Continuity mistake: At the end of the show. Roz is sitting at a table with Bulldog. She picks up the stuffed dog he gave her and chases him to the door, leaving her purse behind. She then goes to the back, probably the Lady's Room. When she returns, she brings her purse with her, even though she left it on the table.
How to Bury a Millionaire - S6-E7
Continuity mistake: When Martin is asleep reading a book, from one angle he is holding the book at the bottom and from another angle, at the top.
Continuity mistake: When Frasier comes home, just after Marty has sprayed oil on the carpet, the pattern of the spray changes considerably from one shot to the next.
Continuity mistake: While Niles, Daphne, and Clive are sitting on the couch talking, the large book on the coffee table goes from closed to opened during the scene, even though no one touches it.
Continuity mistake: Just before Eddie drops his master's slippers by his chair, Marty moves his cane over to the other side of the chair. The handle is facing outward, but when the shot changes, it is now towards the couch, even though Marty didn't touch it again.
Audio problem: As Frasier says, "Well, let's shoot it to the news," we can see his reflection in the booth, but his lips aren't moving as he speaks.
Adventures in Paradise (1) - S2-E8
Continuity mistake: Frasier goes into his booth and puts down the magazine featuring Madeline with the page open. Bulldog comes in and looks at the page, and says how attractive she is. But it is definitely not the same page that Frasier had been looking at a couple of shots before.
Continuity mistake: Eddie is sitting in Martin's chair while Daphne feeds him pate from a plate on Marty's table. At the same time she is scratching his ears. The shot changes, and without enough time for this to have happened naturally, Eddie is lying on the chair and Daphne has the plate in her hand.
Lilith Needs a Favor - S10-E13
Continuity mistake: In one shot Niles is on the phone with Daphne, in the next he's hung up the phone and put it away, without as much as a "goodbye".
Continuity mistake: Roz is in her booth and Kenny is talking to her. Her hair is hanging loosely in front of her ear but as Kenny says, "To hash out some rules", her hair is suddenly tucked behind her ear, even though she never touched it. (00:06:05)
Sleeping with the Enemy - S3-E6
Continuity mistake: At the beginning of the show, Roz and Frasier are standing in front of the bulletin board at KACL. As they talk, from shot to shot, the papers on the bulletin board shift position.
Whine Club - S7-E17
Continuity mistake: During the scene in Frasier's apartment when he's holding a brunch for Mel, Daphne says "it was implied" and suddenly the pitcher of Bloody Marys in front of her has much more in it that it had in the shot before.
Martin Does It His Way - S3-E3
Continuity mistake: Just after Daphne moves the urn from the table to the bookcase, the brown files on the table change position between shots.
Flour Child - S2-E4
Continuity mistake: When Frasier and Daphne are copying the names into the new get well card, we see Daphne using a pen with an orange lid. She puts the lid on the pen and sets it down. In the very next shot she is writing with the same pen.
Continuity mistake: Frasier is at Cafe Nervosa and tears off the edge of a sugar packet which he leaves on the table. Subsequent shots sometimes show the paper there, and sometimes not.
Don't Go Breaking My Heart (3) - S10-E9
Continuity mistake: Niles is at Frasier's apartment, visiting with Marty. He takes some crackers out of his black fanny pack and puts the fanny pack behind him. We see it there when he stands up but there is a shot where there is nothing on the couch behind him. It then goes back to showing the fanny pack.
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.