This is the first time we find out there is at least one more level above Frasier's apartment. Frasier may harbour some resentment he doesn't live on the top floor as he later has problems with people living in the penthouse - in Episode 3.17 - High Crane Drifter the rock star Freddie Chainsaw (who we never see) keeps playing his music too loud despite Frasier's complaints, and during season 9 Frasier has a long-running (mutual) feud with Cam Winston.
This episode marks Martin's 62nd birthday.
At one point Roz threatens to call Amnesty International because the Cranes are 'torturing' her. Peri Gilpin, the actress who plays Roz is actually a member of Amnesty International.
(The power is out all over South Seattle)
Daphne: Well, it looks like the steaks we were going to have are out. I better go see what I can find.
That wouldn't be the case, since Frasier's stove is gas, not electric.
When Niles comes into Frasier's apartment he doesn't close the door behind him. But then later, magically the door is closed.
Last year, Martin's birthday was on a Sunday (in "My Coffee With Niles", he says, "Last Sunday was my birthday") Therefore, his birthday this year should be on a Monday, but this episode is set on a Friday!
Life at KACL: This episode marks the first time that Frasier's show is seen following Gil Chesterton's "Restaurant Beat." Frasier's time slot has been heretofore established as "drive time," probably 2-5 PM, so Gil's show would be a logical one to program during the lunch hour.
Life at KACL: Tom Durant, last scene in The Matchmaker is still the station manager at KACL as of this episode, which makes him the second longest tenured character to hold that position, behind only Kenny Daley.
The masts on the Clipper Ship model Niles and Martin are building, are made of the same plastic as the rest of the ship and highly detailed. The wooden "mast" -- broken by Niles as a gag -- is nothing more than a wooden dowel.
It is odd that when Frasier said "zapatos" (the Spanish word for "shoes") when Niles accused Gunnar of sleeping with Maris, he thought it meant "wife". But when Marta said the word "zapatos" only minutes later translating for Gunnar, Frasier immediately knew the word's actual meaning.
When the vase is broken during the swordfight, notice the way it has been damaged. When Niles comes back down the stairs, the damage to the vase is different.
In the credits, Niles gives Maris a rose when she is in the tank, but a few episodes earlier, Niles had a fight with Maris and he said he couldn't buy her roses because she was allergic.
In this episode, Frasier says he doesn't speak German, and they have to converse with the fencing instructor in Spanish, with Maris's housekeeper translating. However, Frasier was able to speak German in both an episode of Cheers, and a later episode of Frasier.
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!
Including Roz and Kari, there are at least six women at the awards dinner wearing red dresses.
Frasier's bodyguard told him she would need a list of family members who were willing to donate organs should anything happen to Frasier at the awards ceremony. Niles then told Frasier he had abnormally small kidneys, indicating he would not be willing to give one to Frasier. However, in "Travels with Martin," Niles told Frasier that as his brother, Frasier was entitled to one kidney.
Life at KACL: This episode follows established continuity as Bulldog prepares to do his show while Frasier is on the air. Interestingly enough Frasier's first and only Seabee win does not occur within the episode proper but is framed by the final credits as Frasier and Roz accept their awards while Roz is still trying to hide her nose blemish.
Niles embarrasses Frasier by insinuating alcoholism and mentions he acquired knowledge of wine from the bar maid with whom he "shacked up", meaning Diane Chambers.
During the ending credits when Eddie is begging, the shadow of a waving arm can be seen on the couch next to Frasier. Assumedly, this is the arm of Eddie's trainer signaling him to do the trick.