When Heath first arrives in Lonesome Camp, he gets off his horse and enters the saloon. Before going in you can see two obvious shadows of men through the window. When he enters there are no men at the window to cast the shadow.
The sound effect for the first punch that Heath lands against O'Doul in the mine is delayed.
In the opening sequence a wagon comes from the background towards a gate. As the wagon approaches the gate, the shadow of the boom fall on the ground towards the left of the screen at about 8:30, and extends toward the wagon and then behind the wagon.
In the credits, a character is referred to as "Paddy The Ghoul." However, in the show, he is clearly called "Paddy The Goon," by the others, meaning, "Muscular henchman with little intelligence." The latter makes more sense regarding the role.