Continuity mistake: In the first scene when Brains is trying to convert the TV set from black and white to colour, in some shots there are no lenses in his glasses.
Continuity mistake: When Brains says "their leader must be in there" Doughnut and Spring change places.
Continuity mistake: When the gang are spraying the "invaders" with fire extinguishers, Billie and Spring change places between shots. Doughnut also moves further forward.
Continuity mistake: When the gang see the policeman outside their yard they stop walking suddenly causing Doughnut who is at the back to walk into them, pushing the pie he is eating into his face making a mess, In the next shots of the gang Doughnut's face is clean.
Continuity mistake: When the policeman is telling Barney to move on when he is busking outside the cinema, there is a woman in a green shirt pushing a pram along the pavement on the other side of the road, who disappears and reappears between shots.
Continuity mistake: Outside the palladium when the gang are trying to stop Barney from being arrested, the policeman is facing Billie, but when the angle changes the policeman has turned round and is looking the other way.
Revealing mistake: When Barney is in the bus he pushes the roof up with his hat .
Revealing mistake: During the show when each of the gang get a bucket of water in the face they all shut their eyes too early.
Revealing mistake: During the show when doughnut dressed as a tramp sits on the end of the bench and his weight causes tiger, who is sitting on the other end of the bench, to go up in the air, you can see the wires lifting her.
Continuity mistake: When Beaumont first enters the yard he kicks some junk causing him to fall over and split his trousers, soon after he is on the top deck of the bus and accidentally uses the fireman's pole to get through to the lower deck falling over again but this time his trousers are intact, once outside of the bus his trouser split has reappeared.
Continuity mistake: When Tiger shuts the two workmen out of the yard after tricking them into looking for her cat the yard gate is different from the one used for the rest of this episode.
Revealing mistake: The councillors put red paint in Beaumont's hat and put it on his head, squirting paint out through the top, but when they are pouring the paint into his hat you can see it already has a hole in it to let the paint out, and the way they are holding the hat shows them covering up the hole to stop the paint coming out before it is put on Beaumont's head.
Continuity mistake: In the scene when the workman's van has a flat tyre the amount of water on the ground around the flat tyre changes between shots.
Continuity mistake: In the final scene when Tiger is doing an act with the dogs, at the start of the scene the two dogs on the right hand end of the bench change position between shots.
Visible crew/equipment: As Scooper and Billie walk away from Mr Furber's landlady's house after returning her dog, a boom mike is reflected in the front windows of the house.
Other mistake: At the end of this episode the gang still sing "see you next week," even though this is the final episode.
