The Chiller Diller Movie Theater - S2-E4
Plot hole: Given Jim Moss, the studio chief, is already on the train, it makes no sense for him to have been in the coffin. That and how he managed to slip into it without being seen by the conductor or anyone else.
The Chiller Diller Movie Theater - S2-E4
Continuity mistake: Scooby Dum's collar goes from its usual red to yellow briefly in one shot on the train.
