The Fugitive (1963)

A.P.B. - S2-E28

Revealing mistake: At the beginning, the stunt man seen running toward the train in profile (when Kimble jumps aboard the freight car) is very easy to spot. (00:01:50)

A.P.B. - S2-E28

Revealing mistake: Matt Mooney pulls open the freight car's door, and we can see the swiftly passing landscape outside, but not a hair on his head is disturbed by the wind. Rear screen projections don't generate much of a breeze. (00:10:05)

Season 2 generally

Revealing mistake: During the fight with Fallon, Kimble's stunt double is glaringly obvious. He's taller and thinner, and doesn't even have the same color hair. (00:43:50)

Corner of Hell - S2-E21

Revealing mistake: When Kimble leaps from the truck and runs into the woods, the stunt double's face is visible. (00:07:00)