Continuity mistake: Red Twilight, believing his brother's death was caused by Hoss Cartwright, gets revenge by shooting Hoss in the back. When he learns Hoss is still alive, he goes to the Ponderosa to finish the job. Red shoots and kills a ranch hand, then enters the home. Little Joe gets into a fight with Red and both men run out into the yard. The ranch hand's body has disappeared.
The Rescue - S2-E23
Continuity mistake: When Ben is shot at he falls on his right side. When the shooter goes to check it out he's on his left.
The Secret - S2-E31
Continuity mistake: At the Ponderosa, Jake Parson is telling Ben Cartwright of his suspicion that his daughter eloped with Little Joe. The grandfather clock shows the time as 8:53. Both men turn as they hear the door open. As Little Joe walks in, the time has suddenly jumped to 8:59.
Continuity mistake: A mooring rope breaks and sends a hot-air balloon rising into the air. No one is in the gondola. Stock footage shows a hot-air balloon in the sky but a man is visible in the gondola.
Continuity mistake: A flashback episode set in the 1840s opens with Ben Cartwright as a first mate aboard a clipper ship. Rear-screen projection shows an ocean and a grey overcast sky. In a shot of the crew on the rigging and in the crow's nest, the sky is deep blue with a few white clouds.