He Ain't Heavy, He's My Uncle - S7-E6
Visible crew/equipment: When Del is looking out the window at the end, you can see a camera reflected in the glass.
Miami Twice: The American Dream - S7-E8
Visible crew/equipment: When Del asks Rodney if he is still going to Miami after Cassandra says no, Rodney replies, "Possibly." As he walks off, you can see a studio light blurs the camera at the top of the screen in the middle.
Miami Twice: Oh to Be in England - S7-E9
Visible crew/equipment: At one point when Del is searching for Rodney around the mansion, you can see the shadow of a camera on the wall.
Visible crew/equipment: When Cassandra is on the phone to Del at the start, a boom mic shadow is visible.
Visible crew/equipment: After Albert has filled up the baby bottle with the proper water, Myles, Rodney, Del and Albert are all back in front of the shed. In one of the shed windows, a boom mic can be seen moving around.
Modern Men - S8-E2
Visible crew/equipment: When Trigger tells everyone about his accident with a "mind your head" sign, as Boycie pays Rodney to get the drinks, a boom mic is visible at the top of the screen.
Visible crew/equipment: When Del and Rodney are sitting in the van after the auction you can't see into the back of the van for huge boxes. When they start shouting and screaming the camera angle changes to show the van rocking from a distance, and you can see someone in the back of the van through the back windows banging against the side of it.
If They Could See Us Now...! - S9-E1
Visible crew/equipment: Just as Rodney says "Unbelievable", when he realises he was to blame, as the shot changes to Del, the boom mic is visible in the top right corner for a split second. (00:13:30)
If They Could See Us Now...! - S9-E1
Visible crew/equipment: When Cassandra is explaining why the fancy dress party is early, as she walks off, a boom mic comes into shot and is easily visible above Rodney's head.
If They Could See Us Now...! - S9-E1
Visible crew/equipment: Just after Rodney throws the phone on the couch after talking to Mickey Pearce, Cassandra comes out of the bedroom. At the top of the screen, a boom mic is visible for a split second.
If They Could See Us Now...! - S9-E1
Visible crew/equipment: When Del is on the TV Show "Goldrush", he asks to phone Rodney to help him out on a question. As Rodney is watching the show and listening, you can see the camera reflected in Rodney's TV.
Chosen answer: An apparent long string of illnesses.