Factual error: At the beginning of the episode, Dorothy tries to turn off the dirty video that Sophia rented. She presses the fast-forward button on the VCR remote by mistake, and the music on the television continues at a faster pace. However, most if not all VHS players (in the 1980s and today) do not play audio whilst fast-forwarding or rewinding.
The Murder's in the Mail - S1-E6
Factual error: Dead blonde guy is sitting upright in the chair, as Dave/Maddie close in, and Maddie realises he isn't moving. David goes to him and smacks him across the shoulder, to "wake him up" and blonde dead guy, right on cue, instantly slumps over a table at his right side, when the direction that David hit his shoulder, should have sent the dead guy slumping more forward, then at the front edge of the table. Obviously staged for the actor's comfort.