Audio problem: As Frasier walks into Niles' kitchen, Daphne is on the phone, talking. We hear a hoarse sound, like Frasier's voice, saying "Daph" or "Dad" but it makes no sense as she is on the phone talking to someone, and he is heading for the fridge. When she hangs up, she and Frasier start talking about her employment situation.
Audio problem: Dr. Nora's mother is pounding on the glass of Frasier's booth. She then wags her finger at Nora but the sound of her pounding continues, even though she's no longer doing it.
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.