Revealing mistake: Carlene makes Joanna a cup of coffee in the common room after finding her drunk in the toilet. Joanna refuses to drink it and drops the cup, breaking it - it's obvious that there was never any coffee in the cup.
Grange Hill (1978)
1 revealing mistake in season 20
Starring: Gwyneth Powell, Lee Cornes, Sally Geoghegan, Stuart Organ
Genres: Family
Continuity mistake: The third years in this series were first years in series two.
Vince: My uncle looks like Frank Bough.
Trev: Who cares, Vince?
Vince: My Auntie.
Trivia: In his dialogue Ian Hudson mentions the then England football team manager Glenn Hoddle. This episode was first broadcast on the 2nd February 1999 earlier on that day Glenn Hoddle was sacked as England manager.