Visible crew/equipment: In the first scene of the episode, a crew member is visible through an open door beside the staircase.
Visible crew/equipment: During the dream sequence, when Gilligan starts a showdown with Mr. Howell and the Professor, someone's face appears in the window in the background for a second, and it's none of the castaways - someone in the filming crew most likely.
Visible crew/equipment: Right after Samantha, Darrin and Tabitha pop out of the living room, the shadow of what looks like a camera rolling backwards can be seen on the floor. (00:21:55)
Visible crew/equipment: When Tin-Tin responds to news of Scott's disappearance, a floor puppeteer's hand (with dirty fingernails) can be seen at the bottom of the screen lifting Tin-Tin from her seat.
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: The shadow of the camera is visible as Captain Brent walks the Seaview's corridor.
Visible crew/equipment: When Drake's arrival is announced at the party, the reflection of two stage lights appears briefly at the top of the screen. (00:08:00)
Visible crew/equipment: When Phones is unravelling the secret plans, a hand can be seen pulling him back to help unravel the plans.
Flipper and the Bounty - S2-E13
Visible crew/equipment: After Bud wakes up all alone in Bligh's cabin, he soon realises all the doors are locked. Then, just as Bud rushes over to the stern window (particularly the second time), a seated crew member is visible at the bottom right corner of the screen; we can see the movement of a leg and two hands (so, it's not a mannequin).
The Great Treasure Hunt - S2-E19
Visible crew/equipment: When Morticia bounces the anchor on the floor, the wire used to make it bounce is visible when she puts it down.