Dead Letter - S6-E6
Factual error: Unlike the Connie Kowalski character in this episode, real insurance investigators are not trained in arson investigation. Insurance investigators search for evidence of fraud relating to insurance claims. Arson investigators are professional firefighters who have had extensive additional training in arson investigation.
Funeral at Fifty-Mile - S1-E22
Continuity mistake: When Jessica walks from the house to the barn at the end, she is wearing knee high brown boots. By the time she reaches the barn they have been replaced with court shoes.
Trivia: The song Angela Lansbury sings, "Little Yellow Bird," when she plays musical hall performer Emma, is the same song she sang in the 1945 film The Picture of Dorian Gray, when she played music hall performer Sybil Vane.
No Accounting for Murder - S3-E19
Question: Why did the Phantom run out of nowhere after tying up the killer when Grady came into the room with Jessica? Did the Phantom try to avoid being seen by others except Jessica?
Answer: Yes, he didn't want to be a hero. He liked being the Phantom going anywhere and doing what he pleases with people thinking there was a ghost.