Frasier suggests the drinking song, Libiamo Brindisi from La Traviata. Niles disagrees, saying that it is from Rigoletto. Frasier was correct.
In the episode, Frasier hates ice fishing and doesn't know much about it, but in the Cheers episode "Fools and Their Money", Frasier goes ice fishing in Nova Scotia to calm his nerves about Diane--he even goes back!
Niles: (walking into Frasier's place) What a peculiar combination of odors…it smells like a fish died, and all its fish friends sent flowers.
Martin: Now are you sure you're gonna be warm enough?
Niles: No problem there, I dressed in layers. Polo, Eddie Bauer and Timberland.
Frasier: You look like a skinny Elmer Fudd.
Frasier: So, what do we do? We make a hole in the ice with this little corkscrew-thingy and then just start fishing?
Niles: It's called an "auger."
Frasier: Well, imagine my embarrassment.
In the 30-minute category, Steven Levitan won the 1996 Humanitas Prize for his work on this episode.
Niles: Call me Ishmael.
It is referring to the book Moby Dick by Herman Melville. It is the narrator's introduction and the opening line, "Call me Ishmael."