When Pepper's sitting in the living room with the 2 children, and the boy is trying to flip the poker chip, Pepper takes the chip, and says, 'like this', and the shot is of a woman's hand with pink nail polish flipping this chip, but, Pepper's nails have no varnish colour on them.
The surveillance photos of the female robbers shown to the victim are from the wrong angles for a bank camera. They are at eye level, whereas the male robbers were depicted from above, which is normal for an overhead bank camera.
As Royster roars his sedan into position in front of the store being robbed, the front passenger window is supposedly shot out by the hold-up man inside the store. However the glass explodes outward, not inward, as would happen in that case. Royster is not seen taking the shot. Edited footage of this shot ends the series opening credits.
During the first bank robbery, when the woman bank robber fires her shotgun from the hip, there's no recoil.
Even in 1974, more then 4 detectives would be sent to a location possibly containing five armed suspects. The Las Vegas Metro Police Department began using a SWAT team in 1974, the same year as the air date.
When a police car drives dangerously close to a bank, the bank robbers inside blast the passenger-side front window with a shotgun and the window in blown into a million pieces - from the outside. The same shot is used as the punctuation mark of the opening credits (it freeze-frames while executive producer David Gerber's name comes up and the last two bars of the theme play). The freeze-frame shows the window being detonated from the INSIDE, the glass flying outward. Presumably the producers noticed this but left it in the main titles, hoping nobody would remember the actual episode.
The men robbers use stocking masks, but the women wear no disguises.
No one dusts for fingerprints at the crime scenes, and Pepper picks up and plays with a poker chip left by the bank robbers, smudging those fingerprints. This would have been useful in determining the villains' identity.