Visible crew/equipment: Episode 1065, year 1995. The shadow of a boom mike against the wall is visible as it rises out of the scene when Barnabas and Julia exit the room.
Visible crew/equipment: 1795: Angelique throws open a set of double doors to find Jeremiah's ghost in the hall. She cries out and steps back, and to the right of the screen, you can see a crew member's hand enter the shot to pull one of the doors open further.
Visible crew/equipment: 1967: During the closing credits, a crew member walks by outside the supposedly-second-story window of Josette's bedroom - twice.
Visible crew/equipment: At the end of one of the episodes involving the Frankenstein-esque creation of the monster Adam, a crew member's arm can be seen reaching from underneath the live camera to shut off a Jacob's Ladder electrical prop.
Visible crew/equipment: In the 1795 flashback, as Barnabas confronts Angelique beside his coffin, a crew member in a short-sleeved blue shirt is sitting to the right, and can be seen hastily getting up and moving out of the shot.
Answer: It's probably episode 193 (even though the slate at the beginning says 58). It's the episode with Sam demanding that Roger return his paintings. Three clues from the Dark Shadows Companion and from the comments of Kathryn Leigh Scott and Louis Edmonds all agree that 1) Scott is in the episode and is done for the day prior to Edmonds without his pants; 2) Edmonds is wearing a smoking jacket, and 3) Edmonds is leaning on the mantle (which is actually the cabinet where the liquor is, because the fireplace mantle is too high to lean on and the bench in front of it prevents getting too close to). There are several "breaks" in the lengthy scene where commercial were probably inserted, and all of the shots are above the waist. The previously mentioned episode 54 has Edmonds in a suit and Scott isn't in the episode; episode 54 doesn't have Edmonds or Scott; and episode 86 only has Edmonds in a suit.
Lou Edmonds was a consummate actor and would not forget that he had a lengthy scene to perform. Rather, in Episode 86, Edmonds more understandably forgot that he had to perform one last 15-second scene (a simple toast). He had removed his shoes and pants before he was reminded of the final, brief shot, and he hurried back to complete it.
Charles Austin Miller