It's Only Rock and Roll - S4-E4
Factual error: When Del is running out of the pub, him and one other are carrying guitar amp heads and are flinging them about with ease. Heads weigh around 20-30 kg each and would be extremely hard to fling around in such a way as they are. (00:17:00)
Big Brother - S1-E1
Continuity mistake: When Del and Rodney have a fight in the flat, the briefcases move from the sofa to the table. (00:19:50)
Chain Gang - S6-E3
Revealing mistake: When Arnie's car flashes its headlights to Del, it is obvious that the person sat in the car is not the actor playing Arnie in the rest of the episode. (00:13:25)
Other mistake: Del and Denzil have been friends since their school days so when Del says he was once a painter and decorator for a year Denzil should've known he was lying straight away.
Continuity mistake: When Denzil's wife is in the kitchen slamming pots and pans, above Del and Rodney in the corner, Denzil's speaker, which was upside down, is now the right way up.
Visible crew/equipment: When they discover Arthur's ashes and grandad starts to explain, a boom shadow is seen over Rodney. (00:10:45)
The Long Legs of the Law - S2-E1
Revealing mistake: When Del drops all the cutlery, if you watch you can see David Jason is holding it in his hands ready to drop. (00:07:50)
Continuity mistake: Del puts his fork down on his plate at the apartment. Camera cuts and it has changed position without Del touching it. (00:13:25)
Visible crew/equipment: When Del and Rodney run to the balcony, a boom mic is reflected in the window following them. (00:15:15)
Visible crew/equipment: At the start when Arthur says to quieten down, there is a reflection of movement in the butter dish between Del and Rodney, that can only be the crew. (00:01:25)
Watching the Girls Go By - S4-E6
Continuity mistake: Del asks Mike for 3 scotches. If you look closely, the glasses that Mike picks up have already got Scotch in them. He then proceeds to go to the optics to put scotch in the glasses. (00:02:35)
Visible crew/equipment: When Del picks up the hat off the car, he starts to walk to the grave. When he does, the camera crew and equipment are reflected in the car's paint. (00:02:55)
Big Brother - S1-E1
Continuity mistake: When Trig and Del are talking about the briefcases, the level of drink in the glasses on the table changes with no one having a drink. (00:10:50)
Continuity mistake: When Trig puts the fags down on the table he puts down 3 packs, then another 3 packs, then the camera does a closeup of them on the table. There are now only 5 packs. (00:06:25)
Stage Fright - S7-E4
Other mistake: When they return to the flat after the concert and Del speaks one of his 'French' phrases, you can see Tessa Peake-Jones (Raquel) laughing.
Continuity mistake: After Rodney tells Del about Miles in the flat, as he says 'I wish I kept my mouth shut now', he sits on the sofa with his arms folded. Almost immediately after, when the shot changes to show Raquel walk in, he is now lounging on the sofa with a newspaper. He couldn't have changed his position that quickly.
May the Force Be with You - S3-E5
Continuity mistake: Rodney brings Roy Slater back to the flat to see Del. When Roy is leaving, he suggests to Del that they should meet up for a drink sometime, and Del says, "We'll see how it goes." At this point, Del is looking down solemnly, but when Roy turns to say that they're all under arrest, Del is smiling, then his smile suddenly drops.
The Unlucky Winner Is... - S6-E4
Revealing mistake: After Rodney berates Del whilst he's in the bathroom of the hotel room he and Cassandra go out to the balcony and Cassandra goes to get him a drink, Del then goes out to join him. Whilst they're talking you can see Cassandra in the reflection of the balcony door waiting for her cue to come in to give Rodney his drink.
Chain Gang - S6-E3
Continuity mistake: When they rush out of the flat to make the exchange, Rodney stays behind, makes a call to Cassie, but then appears outside the restaurant in the van with Albert.
Continuity mistake: When the police car drives out of the Nag's Head car park after the two police officers arrested Del, you can see that the bonnet of the car is damaged, but when the car arrives at the police station, there is now no damage to the car.
Chosen answer: An apparent long string of illnesses.