Moving House - S3-E1
Revealing mistake: At the beginning when Frank is directing the vans, we see that one gets its windscreen broken by a ladder from another van. However, the glass breaks just before the ladder touches it.
Revealing mistake: When Fletcher and Godper are assigned to the work party and they get locked into the church, one of the prisoners, Melvin (the hippy) leans against one of the 'stone' pillars of the church, causing it to wobble.
Revealing mistake: In the final scene when Foggy is on the horse, it rears up when frightened by Foggy's bleeper, causing Clegg to jump out of the way. It's obvious that it is a stunt double playing Clegg, as he has a different hair style.
The Likely Lads: A Special Christmas Edition - S3-E1
Revealing mistake: Bob and Terry go into the pub after Terry has passed his driving test, you can see the drinks they order are already poured out behind the bar, the barman puts the full glasses under the taps pretending to fill them before handing them to the lads.