Trivia: When Nanette tells Frasier she's tired of playing her children's show character, she asks him if he knows what it's like to play the same character for twenty years. By this point, Kelsey Grammer had been playing Frasier for twenty years: eleven on 'Frasier' and nine on 'Cheers'.
Goodnight, Seattle (2) - S11-E24
Trivia: Niles and Daphne's baby, David, was named in memory of show producer David Angell, who was killed in a plane during the September 11th attacks.
Goodnight, Seattle: Part 2 - S11-E24
Trivia: In the pilot episode, 'The Good Son', there is a fight brewing between Martin and Frasier because Frasier wants to hear Martin actually say the words, "Thank you" to him, for accepting his father into his apartment to care for him. In the series finale, 'Goodnight, Seattle (pt 2)', when Martin hugs Frasier, Martin says, "Thank you, Frasier," to his good son.
Goodnight, Seattle (2) - S11-E24
Trivia: Despite the episode's visual joke about Bebe's plastic surgeon, at the time of writing the actress is only 49 - the same age as Kelsey Grammer.
Answer: In the last episode, they explained that Tossed Salad and Scrambled Eggs is a metaphor for the mixed-up people to whom Frasier dispenses his radio psychiatric advice.