Continuity mistake: When Bulldog is talking to Frasier in the booth at KACL, in one shot his left sleeve is pushed up his arm and his right sleeve is down to his wrist. In the next shot it's just the opposite - his right is pushed up and the left is down. At the end of the scene both sleeves are pulled up.
Continuity mistake: Niles is leaving Frasier's with Daphne and as he says "it was a warm and friendly place", his raincoat strap goes from sticking out from his shoulder to lying flat on his chest.
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.
Continuity mistake: In the scene where Frasier and Niles are talking in Cafe Nervosa, the position of Niles hands and arms change a couple of times. At one point, while Frasier talks about the young woman he has met, Niles folds his arms in front of him but in the next shot to Frasier, we can see Niles fingers laced together - and then the shot returns to Niles with folded arms. They stay this way until another shot where he says "You were in a mall?" and his hands are suddenly on the table and one is lying over the other.
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.