Martin: (to Niles and Daphne who are just leaving Frasier's apartment) Hey guys, are you sure you don't wanna stick around -- I was just gonna open a can of spaghetti.
Niles: But... you have sea bass in the fridge...
Martin: Oh, it'll prob'ly last another day.
Niles: (wisely) Oh, I think you should cook it tonight.
Martin: Fine. I'll nuke it with some ketchup.
Niles: That's ridiculous -- you can't use your turkey recipe on fish.
Kenny: I've never seen Asia. I've seen the band Asia, but...
The scene opens with a board saying, "He's also seen Boston and Kansas." These are also references to '70s rock giants named after places. Boston ("More Than a Feeling") fell to bits some years ago, but Kansas ("Carry on Wayward Son")and Asia are still touring. In fact, they toured in Europe together a year or two back.