Continuity mistake: The fireplace moves from episode to episode, from the center of the room to the corner.
My Favorite Martian (1963)
1 mistake in show generally
Starring: Bill Bixby, Ray Walston, Pamela Britton
Uncle Martin: We don't have love at first sight on Mars. Either it was too silly to bother with, or it was something we discarded in our Dusk Ages.
Tim O'Hara: You mean the Dark Ages?
Uncle Martin: We were never that primitive.