The Waverly Ring Affair - S2-E19
Visible crew/equipment: When Solo enters the scanning room, the shadow of the boom assembly sweeps down the wall on the right side of the door. (00:07:40)
Visible crew/equipment: In the woods in the dead of night, Illya opens his car door and captures the reflection of the big round studio light illuminating the scene. (00:35:45)
The Birds and the Bees Affair - S2-E18
Visible crew/equipment: The shadow of someone who's not in the shot intrudes on the right side of the screen as Solo exits the communications room and enters the corridor. (00:02:15)
The Very Important Zombie Affair - S2-E15
Visible crew/equipment: Captain Ramirez's car has a flat on a dirt road in the middle of the jungle. But on his car door, there's a clear reflection of a big square studio reflector and four klieg lights. (00:23:00)
The Bridge of Lions Affair (2) - S2-E21
Visible crew/equipment: During his fistfight with the burly body guard outside Sir Norman's estate, Illya's stunt double's face is visible in profile. (00:40:15)
The Round Table Affair - S2-E27
Visible crew/equipment: As the bus door is pulled shut at the end, the glass in its window captures the reflection of a big round studio light. (00:45:10)
The THRUSH Roulette Affair - S4-E7
Visible crew/equipment: When Solo and Coleman call Monica from the hotel, the shadow of the entire boom mike assembly is bobbing up and down on the wall above and behind them. (00:25:10)
The Dippy Blonde Affair - S2-E16
Visible crew/equipment: While Solo is reading Jojo's arrest record to her, the shadow of a film crew member's hand moves on the wall at the lower left of the screen. (00:14:15)
The Very Important Zombie Affair - S2-E15
Visible crew/equipment: When Solo and Illya move across the room to answer the door, the shadow of the boom can be seen moving in the mirror on the left. (00:13:05)
The Waverly Ring Affair - S2-E19
Visible crew/equipment: After George's hypnosis and brainwashing are complete, the boom slips into the shot at the upper right corner of the screen. (00:12:10)
Visible crew/equipment: During Arthur's argument with his sister over the guest list, the boom shadow moves across the wall at the upper left of the screen. (00:13:45)
The Seven Wonders of the World Affair (2) - S4-E16
Visible crew/equipment: When Solo is being marched out to face the firing squad, the shadows of the camera crew are captured twice on the white pillars surrounding Kingsley's swimming pool. (00:20:15)
The Deadly Goddess Affair - S2-E17
Visible crew/equipment: When Hubris and his henchmen leave Narouz's bistro, the boom shadow is lurking on the block wall at the lower right. (00:20:45)
The Concrete Overcoat Affair (2) - S3-E12
Visible crew/equipment: When the captured Illya is brought into Strago's conference room, the boom shadow is lurking on the curved wall over their heads. (00:12:00)
Visible crew/equipment: In the sand dune fight in the teaser scene, Illya's stunt double's face is viewable as he jumps on his attacker and rolls down the slope. (00:03:25)
The Project Deephole Affair - S2-E26
Visible crew/equipment: When Waverly and Solo walk from the office into the corridor at U.N.C.L.E. HQ, part of the camera rig is showing, moving ahead of them, at the bottom right of the screen. (00:06:45)
Visible crew/equipment: When Illya, outside in front of the skyscraper office building, stands beside the cab talking on his communicator, the boom mike is visible over his head throughout the shot. (00:40:00)
The Waverly Ring Affair - S2-E19
Visible crew/equipment: When Carla enters Waverly's office, both the boom mike and its shadow are prominently visible at the top of the shot. (00:04:30)
Visible crew/equipment: When Solo gets out of the cab in front of Thrush HQ, the taxi's windows catch a perfect reflection of the camera and a studio light as the driver pulls away. (00:14:50)
Visible crew/equipment: When Zark uncovers the caged bat and shows it to Illya, the shadow of the boom mike sweeps across the back wall. (00:33:30)
Answer: He must have ridden in an Eaton's store elevator while he was in Canada at some point. For some reason, this elevator reminds him of it. The show's original concept had Solo being a Canadian, so this may be a minor nod to that fact.
raywest ★