Deliberate mistake: Though it was, overall, far more historically accurate than most TV westerns, "High Chaparral" retained one anachronism throughout its run. For safety reasons, all the coal-oil lamps and lanterns on the set contained obvious electric light bulbs rather than burning wicks.
The High Chaparral (1967)
1 deliberate mistake in show generally - chronological order
Starring: Cameron Mitchell, Leif Erickson, Linda Cristal, Henry Darrow
Genres: Western
Gold Is Where You Leave It - S1-E19
Revealing mistake: Buck lights the fuse and tosses the dynamite-filled barrel at the bad guys. We see the explosion. Unfortunately, after that, we can also see the intact barrel still rolling away in the dirt.
Billy Blue Cannon: I need all the rest I can get, Uncle Buck.
Buck Cannon: When I was your age, Blue, the word 'rest' hadn't been invented.
Trivia: The all-black 10th Cavalry mounted troop is portrayed here by a re-creationist group that has trained itself in specialized 19th Century cavalry riding maneuvers. The group includes some descendants of the original "Buffalo Soldiers," whose nickname was coined by Native Americans that had never seen black men, and thought the soldiers' hair resembled that of the buffalo.