The Shock Will Kill You - S2-E13
Revealing mistake: While Ralph, Pam, and Bill are at the motel, Ralph wraps up all the metal plate covers and cutlery inside the bedspread, then when Ralph walks back and forth we can see the wires attached to the bedspread bundle as it moves. (00:18:15)
The Shock Will Kill You - S2-E13
Continuity mistake: After Ralph drops down into the tunnel in order to lure the creature, Ralph stops in front of a junction box on the wall. In the shot facing the box head-on as Ralph gets one of his holographs, suddenly there's writing on the cover of the junction box. The writing is not part of Ralph's vision. (00:37:55)
