The Home Front: Part 2 - S8-E2
Visible crew/equipment: After Calvin makes more threatening remarks to John in front of Godsey's store, when Ike asks John if Calvin threatened him again, Ike turns to watch John walk away, and the tip of the hidden microphone is visible inside Ike's shirt, under his bow tie.
The Home Front: Part 2 - S8-E2
Visible crew/equipment: When Ike removes the gas pump from John's truck he turns to put it away, and the black wire as well as the bulging outline of the mic transmitter are visible at the back of his waist. Then after John pays Ike for the gas, Calvin pulls alongside John just as he reaches up to wipe his truck's windshield, and we can see the bulging outline of the mic transmitter and its wire on John's back.