About the characters

- Only appearance of Gaston Lestrange, named Charles in the English version.
- First time the principal discovers Kiwi.
- Odd knows how to pick locks.
- Ulrich doesn’t fuse with his remaining double, which is the only time in the series this happens.
- The principal finds Yumi to be a very sensible student.

About errors

- The factory microphone disappears from Jeremy’s ear in one shot.
- The deck (underside) of Odd’s skateboard is red in one shot in the sewers.
- When Jeremy enters the lab, the buttons on the lift disappear.
- Herb’s hair is entirely black when Ms Hertz talks to Sissi.
- Just before Odd enters the scanner, the colours of his pants are inversed.
- At the moment of virtualisation, the sheath of Ulrich’s sword is on the right instead of the left.
- The tower XANA activates at the beginning of the episode isn’t the same one that Aelita deactivates!
- Just before Mr Fumet enters the room with the lockers, the lock on the door disappears.
- In a shot of Jeremy, Odd and Ulrich’s class at the beginning of the episode, we see Milly, Tamiya, Anouche Bedoyan, Anne-Sophie Munier, Ninon Costes and Veronica Fayolle, who are meant to be in year 6.
- Odd’s pants are entirely the one colour when he enters the room in which the phones are kept, when he’s relieved Mr Fumet doesn’t find him, when he, Ulrich and Jeremy watch Jim and at the moment when Ulrich begins to talk to him.
- The principal’s moustache and eyebrows are grey when he says “Just what is going on in here”, just before Sissi talks to him, at the moment when he says to her and the students that he won’t return their phones and his moustache is grey before he asks Yumi if she’s listening.

About the series

- French title: Satellite
- Third of four episodes in which Sissi was voiced by Christine Flowers.
- Ms Hertz’ voice is also different.
- Mr Fumet’s name is changed, but changes back to Fumet from season 2 onward.
- Hornets are referred to in this episode as Waspsters.
- The name of the military satellite is U4 66!
- At Kadic, mobile phones must be turned off before entering the classroom or they’ll be confiscated!
- Only episode in which Jeremy isn’t eating at the same table as his friends in the cafeteria.
- First appearance of the military satellite, which XANA uses again in episode 75, “Hot Shower.”
- XANA makes all the students’ phones ring at Kadic so the heroes’ would be confiscated; it controls the phones again in episode 91 “Bad Connection” to XANAfy the students and teachers.

About references

- When the satellite is selecting a target, we clearly see on Jeremy’s screen that Kadic is situated not for from Paris (same place as Lycée Lakanal, the school Kadic is based on, in real life).

- Ulrich and Jeremy’s phones resemble Nokia 3310s.