Dark Side of the Moon - S7-E22
Continuity mistake: Simon has shown up at Daphne's shower and is standing at the bar/table with Roz and Holly. There is a bottle of champagne on the table, next to an ice bucket - but when Daphne drags Simon away the shot shows that the bottle has mysteriously made its way into the ice bucket.
Dark Side of the Moon - S7-E22
Continuity mistake: When Daphne goes to Niles's place to see him, she sits down on the couch and slides her purse behind her. A couple of shots later Niles gets up and now we can see her purse on the couch to her left. At no time did she make any movements that could explain its change of position.
Something Borrowed, Someone Blue (1) - S7-E23
Continuity mistake: Frasier is just saying goodbye to Niles and we can see the brochure for Daphne's reception to the left of his sherry glass. When he stands up and shouts "Daphne!" the brochure has moved about 6 inches to the right, even though no one touched it.
Something Borrowed, Someone Blue (1) - S7-E23
Continuity mistake: Roz is on the phone with a guy, trying to set up a date for Daphne's wedding - in one shot her hand is on her little black book, and in the next it is in her lap, with no time for natural change.
Something Borrowed, Someone Blue (1) - S7-E23
Continuity mistake: In the opening scene Roz gives Daphne a little gift box. Daphne puts it on the coffee table to her right but during the scene it moves back and forth between that position and being in front of Roz.
Something Borrowed, Someone Blue (1) - S7-E23
Continuity mistake: Frasier has his arms around Daphne, restraining her from attacking Simon; as the doorbell rings and the shot changes, the bag of cookies that was in her arms noticeably changes position, even though neither of them moved.
Something Borrowed, Someone Blue (1) - S7-E23
Continuity mistake: When Frasier is in his apartment, trying to get Daphne away from Niles, the book and decorative pieces on his coffee table change position from shot to shot.
Something Borrowed, Someone Blue (1) - S7-E23
Continuity mistake: Just before Simon returns from California, Roz's purse is lying flat on Frasier's coffee table. As she goes to pick it up, the purse straps are sticking up, even though no one went near it between shots.
Something Borrowed, Someone Blue (2) - S7-E24
Continuity mistake: The brother Daphne identifies as Nigel is later Steven. Seeing as Steven is her favorite brother she wouldn't have mixed them up.
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.