Continuity mistake: During series 6 Jeremy Irvine (Jonah's cousin) is a pupil at Rodney Bennett school and a year younger than Jonah, but when Jeremy transfers to Grange Hill this series he is in the same year as Jonah.
Episode #7.1 - S7-E1
Character mistake: After Zammo has walked Jackie to Brookdale he is chased off by Gluxo. During the chase Gluxo falls over he calls out "you wait, I'll have you Mcguire." No way for him to know Zammo's name when this is the first time they've seen each other and they go to different schools. (00:08:27)
Episode #7.2 - S7-E2
Other mistake: When Claire is asking her friends for their dates of birth for her bio rhythm calculator Anita says her date of birth is 25th October 1968, to be in this school year she would have to have been born between September 1967 and August 1968.
Episode #7.3 - S7-E3
Continuity mistake: When Zammo and Jeremy are first chased by Gluxo and friends they run past three parked cars - a blue Maestro, a gold Toyota and a green Datsun. The camera angle changes to the other side of the road and the Maestro has gone. (00:03:10)
Episode #7.3 - S7-E3
Other mistake: Jeremy is making a copy of Zammo's bus pass - the expiry date on it is 16th December 1983, this series is set in 1984.
Suggested correction: The episode was broadcast in 1984, but the early episodes are set at the beginning of the school year, which is in September. So it's perfectly plausible this takes place in late 1983.
Episode #7.5 - S7-E5
Continuity mistake: In this episode Miss Lexington's first name is Jenny, in previous series' it was Andrea.
Episode #7.6 - S7-E6
Visible crew/equipment: When Mr. Baxter opens the cupboard door and everything falls out, you can see a pair of hands pushing everything out.
Episode #7.7 - S7-E7
Visible crew/equipment: When Mr Baxter enters Mrs McCluskys office the camera lights are reflected in the door windows.
Episode #7.9 - S7-E9
Continuity mistake: When the argument starts between Glenroy and John Eastlake, Mr Fowler stands between them. Next shot Sue Shallcross is standing between Glenroy and Eastlake and separates them. Mr. Mcguffy then stands next to Sue, next shot Mr Fowler is standing between the two boys, then the angle changes and Sue and Mr Mcguffy are standing between Eastlake and Glenroy again, with Fowler standing next to Eastlake.
Revealing mistake: When Mr Baxter tumbles down the hill after losing his footing, you can see that it is not Michael Cronin but his stunt double.
Other mistake: At the disco when "Blue Monday" by New Order is being played, the subtitles wrongly state that the song is "You Spin Me Round (Like a Record)" by Dead or Alive.
Continuity mistake: The last record that Pogo plays is "True" by Spandau Ballet. When he first starts playing it the record label is red; after Stewpot asks Pogo to play the song again the record label is black.
Continuity mistake: Mr McGuffy is walking down the corridor - behind him is a girl dressed in pink, and walking towards him is a boy in a black jumper with a white stripe on it. Mr. McGuffy enters the classroom to speak to Pogo - when the angle changes to inside, the girl in pink doesn't walk past the open door but the boy does, even though he had already passed the door in the previous angle.
Continuity mistake: In the first scene of the disco with Glenroy as the DJ, some of the kids dancing can also be seen in the next shot of kids waiting in the queue to pay to get in.
Revealing mistake: At the end when the credits are rolling, Spandau ballet's song "true" is heard playing, but if you look at the disco unit the turntable is revolving, but the arm is not on the record.
