Revealing mistake: At the very beginning of the episode, Leonard Pearce is waiting for the cue for his character to start looking for his teeth. He's standing in the living room, between his room and Del and Rodney's room. (00:00:25)
Continuity mistake: When Del is proposing Slater a deal, Slater says "I don't like deals" and shoves Del's hand off the phone hook (Del was trying to stop Slater keeping him in custody overnight). But in the next shot Del's hand is still on the hook.
Continuity mistake: In the previous episode (Cash and Curry) Del boy sells all of his gold jewellery and one of Grandad's two TVs in a bid to make £2000 to buy a statue as part of the con. In this episode Del has all if his jewellery back and Grandad has his two TVs again.
Plot hole: Del and Rodney find the nuclear shelter and decided to try it out. They then do a couple of runs to find the best place to build it. We then see the pair inside the nuclear shelter which they have built, filled with stuff like a bed, food batteries etc. all in one afternoon. (00:11:45)