The Killings at Badger's Drift - S1-E1
Visible crew/equipment: After Barnaby and Troy question Michael Lacey at Holly Cottage and leave, it then cuts to Michael entering his painting studio, and while the camera is tracking backwards, the reflection of the short-sleeved camera operator becomes visible in the mirror atop the dresser, at the right side of the screen.
Visible crew/equipment: Tom kneels to pet a fox, at which point one can see a human hand holding the fox in place for the actor. (00:06:35)
The Made-to-Measure Murders - S13-E2
Visible crew/equipment: A crew member's shadow is seen moving behind an open door that a character is walking by. (00:15:45)
Answer: Yes, he appeared in an episode called "Judgement Day", shown in 2000.
Tailkinker ★