In the epilogue, Barnaby drinks a glass of wine, a rare departure from him usual glass of milk.
Barnaby's cousin and his girl are called JR and Sue Ellen respectively, names made famous by the fiery couple in Dallas (1978).
In the final scene, when James Olsen and Mark Shera are fighting, it's obvious that there's a stunt double standing in for James Olsen in shots of him from behind. Mr. Olsen has thinning hair, and the stunt double has a thick head of hair.
Mark Shera (Jedediah Romano "J.R." Jones) is added to the opening credits after Lee Meriwether.
The opening theme to the show has been updated for season 5.