Hermes was able to limbo under the emergency-door which Zoidberg clamped open, about 20cm in height... And now he can barely limbo under stick almost as high as himself standing up.
When the torch-carrier is about to light the Olympic flame, there are 2 guys with small flags. The right one is the Belgian flag, with the black field attached to the stick. Then, when the athletes enter the stadium, we see another correct Belgian flag in the audience, yet the big flag of the Belgian team (in front of Canada) is reversed, with the red field attached to the pole.
Bender's antenna pops out at the end despite having been snipped off.
This episode starts off at the 3004 Olympics. Two episodes before (by production code) "Where No Fan Has Gone Before" the cast of Star Trek and the Planet Express Crew are forced to take place in "Trek Fest 3002". I really don't think the episode "The Sting" took over a year.
No-one seems to notice that the Coilette marrying Calculon looks nothing like the Coilette who competed in the Olympics.....
In 2ACV14 Mother's Day, Mom said that every robot has an antenna, so why would Bender need his removed for a sex change operation?
In the 2980 Olympics in Hermes' flashback in 1ACV10 A Flight To Remember, there was one Earth team, but here in 3004 each country has its own team.
Note: Countries do have inter-state games in which each state brings their own flag to represent and that may be how Earth works in 3004.
LaBarbara says Hermes hasn't limboed in the Olympics "for 20 years" but it has been 24 years, since he competed in the 2980 Olympics and this is the 3004 Olympics.
When Bender was a fembot, he was wearing clothes, but all other fembots that appeared throughout the series didn't wear clothes.
Alien code: The opening title has Alien Code #1 on it. This was the last attempt by the staff to put it in fans faces that there were secrets put into the show. And now that they were going off the air, there was a reason to go back and watch other episodes. When translated it reads: "Thanks For Watching, Futurama Slave Army!"
This is the second appearance of Joe Camel, the first being in Where the Buggalo Roam.
In the scene where everyone is going to sleep, the camera starts at the Professor's tent, then pans across the three other tents. The middle two tents appear to have naked occupants.
Opening Voice-over: "Prepare for the stereophonic experience."
The Bigfoot film is copyrighted MMCMLXII (2962) - Most Rights Reserved.
The end credits sequence, cut out of the Fox airing, was a segment of "The Scary Door."
One of the RV's in the parking lot looks like the one from Spaceballs
The satelite with the ranger's ad looks just like Sputnik I.
Bender's Pez dispenser is Calculon shaped.
When Fry realizes his "lower horn" is in danger, he pulls off his reattached nose and offers it to Lrrr, and the show cuts to commercial. When they return from commercial, Fry's nose is back on his face.
In "Xmas Story" the professor says that pine trees are extinct, yet the Duraflame National Forest seems to be filled with them in this episode. Unless they are actually made out of duraflame.