A Midwinter Night's Dream - S1-E17
Continuity mistake: When Martin is giving Niles ideas on how to win Maris back, the food on Martin's fork changes between shots.
A Midwinter Night's Dream - S1-E17
Continuity mistake: In the opening scene when Daphne and Eric are talking, the dish towel over Eric's shoulder is laid flat in some shots, and is twisted up in others.
A Midwinter Night's Dream - S1-E17
Continuity mistake: The time on Niles' musical clock changes time suddenly and frequently between shots, once from 9.00 to 10.55 to 11.25 almost instantly.
A Midwinter Night's Dream - S1-E17
Continuity mistake: Early in the show Niles shows up at Frasier's in his pirate outfit. He has a plastic knife in his sash which changes position noticeably several times during the scene (without Niles touching it).
A Midwinter Night's Dream - S1-E17
Continuity mistake: At the beginning of the show, Niles, Frasier and Daphne are at Cafe Nervosa. Daphne is standing up talking to Eric the server and Niles gets agitated, and spills sugar everywhere. Eric throws down a dish towel so they can clean it up. The dish towel appears and disappears several times during the scene.
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.