The Goodies and the Beanstalk - S4-E4
Visible crew/equipment: When the bath goes off the cliffs, you can see the string lifting it, so it is obviously on a crane.
The Goodies and the Beanstalk - S4-E4
Other mistake: When Bill is running towards the castle, he drags Graeme and Tim. When Tim is trying to free himself, he chews on his rope. When Tim is freed, a different part of the rope than what Tim previously chewed opens.
The Goodies and the Beanstalk - S4-E4
Continuity mistake: When the beanstalk is pushing the bath down the road there are two parked cars a blue Austin 1100 and a sliver Ford Cortina behind it, the angle changes and the cortina has gone.
Visible crew/equipment: While the Goodies are in the bank, shadows of the boom mike can be seen on the wood panelled walls several times.
The Goodies and the Beanstalk - S4-E4
Revealing mistake: While the Goodies are escaping the castle, you can see wires that the birds chasing them are hanging from.