Visible crew/equipment: In the episode where they are planning Karl's sister's wedding, when Karl is in the kitchen, right before Vigdis enters, you can see a crew member in a red t-shirt reflected in the glass door of the storage unit behind Karl. This crew member can be seen several times throughout the scene.
Visible crew/equipment: In the opening sequence, when Karl opens the door to his apartment, you can see the top of the set wall and the stage lights hanging above, in the corner of his living room.