Video Nasty - S5-E5
Visible crew/equipment: When Albert is going on to Rodney about how he was "poncing around at his art college", just above their heads, a boom mic pops into view and then moves back. (00:04:35)
Video Nasty - S5-E5
Visible crew/equipment: After Rodney complains that the "t" and "a" are missing from his typewriter, Del says "I have faith in you". As he says this, a boom mic sweeps past the top of his head.
Video Nasty - S5-E5
Continuity mistake: When Mickey Pearce is filming, Rodney walks in and says something, then turns and walks back into the kitchen. When the video is shown at the Nag's Head, Rodney turns the other way before walking out.
Chosen answer: An apparent long string of illnesses.