The Friend - S3-E11
Continuity mistake: Frasier's new friend Bob pulls away from the table in Cafe Nervosa - his plaid hat is still on the chair next to him. In the next shot the hat is suddenly in Bob's lap, even though he couldn't possibly have put it there in that time.
The Friend - S3-E11
Continuity mistake: Roz is showing Frasier some faxes in his booth at KACL - as she holds them they are folded over. As she says "are you nuts?", the papers are flat in her hand, no longer folded over, with no time for her to have changed them.
The Friend - S3-E11
Continuity mistake: In the last scene, at the Cafe, Bob puts a dollar on the table in front of him. A waitress brings a cup and puts it down - the dollar has disappeared. In subsequent shots it reappears.
The Friend - S3-E11
Continuity mistake: Frasier and Bob are in Cafe Nervosa talking. Bob has a book in his hand. In another shot he is moving his hands around, even though there was no time for him to have put the book down.
The Friend - S3-E11
Continuity mistake: While leaving Nervosa, Bob has the BBQ book in his lap. After Frasier leaves, the book is back on the table. (00:12:10)
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.