Continuity: 4-3 "Only the Bad Come to Sonora": The number of outlaws in the gang mysteriously increases during one chase scene. For most of the episode, there are only three of them. When they gallop off after Manolito, there are suddenly five. Next scene, there are three again.

Audio problem: 4-2 "Spokes": When Buck orders the would-be killers out of the hotel room, his lips don't move in sync with the words he speaks.

Revealing: 4-5 "A Matter of Survival": The doll standing in for Baby Joey is visible in one shot of Victoria carrying the child on horseback. The blanket slips, leaving the doll's stiff neck, plastic head and shock of sticking-straight-up nylon hair all in plain view.

Continuity: 3-12 "Alliance": When Manolito trips and drops all of Victoria's packages in the street, a box that lands beside his head in close-up disappears in the next, wider angle shot.

Continuity: 3-2, "A Time to Laugh, A Time to Cry": Manolito rushes into Don Sebastian's study, passing two large, open doors. When the shot cuts, he passes the same doors again.

Factual error: 4-15 "The New Lion of Sonora" Pt. 2: In the 1870s, poker chips were made of wood and either branded or painted with denominational values. But the brightly colored chips on General Casados' table in this episode are very obviously made of plastic.

Continuity: 3-19 "Mi Casa, Su Casa": While he's "dining" with Miguel and the banditos, Don Sebastian's position on the ground changes repeatedly as the camera angles shift. In most shots, he's reclining and leaning on one elbow. But in several others, he's sitting upright.

Audio problem: 4-16 "The New Lion of Sonora, Pt. 1": During Don Sebastian's funeral, the single church bell is tolling. But the ringing sound effect continues after the bell itself has stopped moving.

Continuity: 4-16 "Sangre": The blood stain on Sangre's clothing disappears when Manolito borrows the outfit as a disguise. It reappears at the end just in time for Sangre to put the clothes back on again.

Visible crew/equipment: 3-11 "The Legacy": While Burnett sits in the hotel room chair talking to Trice, an equipment shadow moves across the top of his head.

Plot hole: 3-7 "Trail to Nevermore": At the end, despite an earlier emphasis on the necessity of wearing one's hat in the desert, John rides out of town without his. Victoria, who wore John's hat when they crossed the desert, isn't wearing it either. And of course, the "lost" hat reappears on John's head in the next episode.

Plot hole: 3-26 "No Trouble at All": Victoria asks her rescuers to take her to Rancho Velásquez. When they ask where it is, she says, "About 30 miles from here." Though she never indicates a direction, they reply, "Sorry, we're not going that way."

Continuity: 3-6 "To Stand for Something More": After pulling the calf out of the mud, Pedro rides off on Blue's cream-colored horse, Soapy. They go off in opposite directions (Blue on Pedro's horse), yet minutes later, Blue arrives at the ranch - riding Soapy.

Plot hole: 4-16 "Sangre": The scriptwriter here apparently never saw earlier episodes in which it was well-established that Manolito spoke fluent Apache. In a scene where he attempts to sneak past two braves while disguised as an Apache, he suddenly can't speak the language when they challenge him.

Visible crew/equipment: 4-16 "Sangre": When Sangre attacks the soldier and the man's rifle falls during the fight, the shot cuts to a close-up of the gun - and we can see several white blocking marks chalked on the floor beside it.

Plot hole: 4-3 "Only the Bad Come to Sonora": Manolito trades clothes with the poor peon he meets on the road. But at the end of the episode, he has the same clothes that he gave away earlier (his usual outfit) back on again.

Continuity: 3-16 "Friends and Partners": The plate Buck and Mano wash is a 20th Century pie tin made of non-reflective aluminum, something unlikely to be found in 1870s Arizona. After they dry it off, it changes into polished steel that's shiny enough to reflect their faces. It also changes shape.

Factual error: Though High Chaparral had a windmill and a water tower, there were no pipes to deliver water to the house - just a well that appeared in the yard only when called for in the script. They had plenty of eggs, but no chicken coops, and though Victoria always had fresh flowers in the house, we never saw a garden. We also never saw the ranch outhouse, but no surprise there: no one on TV in the 60s ever had a bathroom.

Continuity: 3-12 "Alliance": The petticoat Mano pulls out of Johnny Ringo's hands disappears in the very next shot when they greet each other on the street.

Revealing: 3-7 "Trail to Nevermore": During the cart-pulling scenes in the desert, the use of a stunt double becomes apparent when the usually reed-thin Victoria suddenly gains several pounds and some new muscles in the posterior region.