Kung Fu Kapers AKA Ecky-Thump - S5-E7
Revealing mistake: When the pudding flies into Bill's mouth, you can see the wire pulling it.
Kung Fu Kapers AKA Ecky-Thump - S5-E7
Revealing mistake: Bill shoots tea at Tim from two kettles, but if you look at Bill's finger, you can see the trigger for the spray gun shooting the tea.
South Africa AKA South African Adventure AKA Apartheight - S5-E11
Revealing mistake: When the two guards throw Bill over the gate the dummy doubling for Bill isn't very lifelike.