Visible crew/equipment: After Doctor Ellingham finds the sofa on the road, Bert shows up and sits down on it and talks. As he does, watch the side mirror when Doctor Ellingham returns to his car. When the door opens, you see the reflection of a cameraman or other crew member reflected in the mirror. (00:02:05)
Doc Martin (2004)
1 visible crew/equipment mistake in Blood Is Thicker - chronological order
Starring: Ian McNeice, Martin Clunes, Joe Absolom, Caroline Catz
Character mistake: When Grandad collapses, the Doc calls Morwenna's grandfather Mr. Dunwich, which is the surname of one of his patients in this episode. The grandfather has the same surname as Morwenna, which is Newcross.
Dr. Martin Ellingham: Bert, it's been a long day. Take two aspirin and insult me in the morning.