Cat Amongst the Pigeons - S1-E5
Visible crew/equipment: When Purdey runs to Steed's front door after finding the 'Sanctuary of Wings' ring, the boom mike appears in the bottom left of frame as she calls after Steed.
The Tale of the Big Why - S1-E8
Visible crew/equipment: When Gambit is on the wing of Turner's plane, there is a close-up of Turner where a crewmember is visible in the background.