Mirror Image - August 8, 1953 - S5-E22
Continuity mistake: When Sam tells Al the bartender that he knows another Al who uses the term "caca," Al leans over toward him to say, "Common expression." The camera angle reverses, and Al is abruptly not leaning any more, but standing back from the bar in his earlier position. (00:16:25)
All Americans - November 6, 1962 - S2-E14
Continuity mistake: Chewie is wearing the number 86 jersey in both games. However, when he is sitting out with his supposedly injured knee we see a shot of the number 86 jersey chasing an opponent.
Another Mother - September 30, 1981 - S2-E13
Plot hole: Sam wallops both kidnappers and rescues the son. They then leave the two child molesters unconscious beside their van. No one calls the police or has them arrested, so they're free to kidnap another kid. Sam doesn't leap until after an epilogue in which the loose ends are supposed to be resolved - but this question is left unanswered. It's not excused by a "just because we didn't see it happen doesn't mean it didn't" defense. The viewers shouldn't be left with a dangling plot hole, and one line could have cured this one.
Leaping in Without a Net - November 18, 1958 - S2-E19
Audio problem: In the beginning of the show, when Sam's father tells him to get down, Sam climbs down and falls off the net. When he hits the dirt it makes a sound like he's hitting a board.
Genesis (1) - September 13, 1956 - S1-E1
Continuity mistake: A confused Sam/Tom stumbles out into the yard bare-chested with shaving cream smeared on his face and neck. In the next shot, though he hasn't touched it, the cream is suddenly all over his chest as well.
Leaping in Without a Net - November 18, 1958 - S2-E19
Continuity mistake: When Sam and his sister are on the trapeze and she does a double and he catches her you can see that the bar she jumped from is not moving behind her. Then when she jumps back to it, it's swinging again.
All Americans - November 6, 1962 - S2-E14
Continuity mistake: In the party after the 1st game when Chewie and Sam are talking about the championship, Chewie pulls up a chair and sits on it backwards with his hands in his lap. After the cut to another camera, his arms are up on the back of the chair.
8 1/2 Months - November 15, 1955 - S3-E12
Continuity mistake: Willis drops his cap on the road when he runs away. It's still there in the long shot of him running, but after the commercial break we return to the same scene, and as Sam stands up, the cap is no longer on the road behind him. (00:35:10)
Suggested correction: After the commercial break we are looking in the opposite direction than Willis ran, so not seeing a hat isn't a mistake. In fact if we saw a hat, THAT would be a mistake.
Maybe Baby - March 11, 1963 - S2-E20
Audio problem: When Sam is looking in the mirror talking to Al, he says, "Would you look at me? I've got a gold tooth." However, the reflection doesn't mouth the first part and doesn't even say the second.
The Color of Truth - August 8, 1955 - S1-E7
Continuity mistake: After Miss Melanie's son leaves, Sam/Jessie reaches out to steady her. His left hand is on her shoulder until the camera angle changes, when both his hands are at his sides. Change angles again, and his hand is back on her shoulder.
The Americanization of Machiko - August 4, 1953 - S2-E3
Factual error: In the scene where the guy is telling Machiko about the major league teams that wanted him, he mentions the Indians, Yankees, and Orioles. The episode is set in 1953 and the story is from before World War II. While there had been a minor league team called the Orioles up to that point, there was no major league team called the Orioles until 1954.
Maybe Baby - March 11, 1963 - S2-E20
Continuity mistake: At one point when the police are chasing Sam, the car has a Sheriff's star on the driver's side door; however, when Sam drives into Clayton, no star is to be seen.
All Americans - November 6, 1962 - S2-E14
Continuity mistake: In one play during the montage sequence of the championship game, the quarterback for the Jaguars (Sam) is number 15 - but he wears 12 throughout the rest of the show. This is Sam, because Al later tells him to quit, so he's been playing the whole game.
Maybe Baby - March 11, 1963 - S2-E20
Continuity mistake: When Sam is talking to Al in the store (while looking at car seats), Al checks on Margaret Dalton and holds the handset at chest level. The shot switches to Sam down on his knees and it's at his face level (about Al's waist). Then the shot switches back to Al and the handset is again chest high.
M.I.A. - April 1, 1969 - S2-E22
Factual error: Though this episode takes place on April 1st, 1969, a freshly-painted sign in the park contradicts the date. In the scene with the hippies in which Sam is disguised as a meditating guru, the huge sign just behind him touts the San Diego Centennial Celebration - in 1968. (00:16:00)
The Color of Truth - August 8, 1955 - S1-E7
Continuity mistake: When Sam leaves the jail after the Sheriff has released him from custody, we can see Sam's reflection, not Jesse Tyler's, in the window on the door as it swings shut behind Sam.
Good Night, Dear Heart - November 9, 1957 - S2-E17
Continuity mistake: At the end, when Sam is at the graveside, snow is falling and a close-up shot shows Sam covered in snow, but the wide angle shot shows little to no snow on him.
So Help Me God - July 29, 1957 - S2-E9
Factual error: At one point when Sam is visiting Delilah in the courthouse he is hugging her and the Sheriff guarding the door comes in and sees them. As the sheriff is leaving, he has a patch on his arm that says "County Sheriff." As this episode took place in Louisiana, there would only be Parish Sheriffs, not a County Sheriff.
8 1/2 Months - November 15, 1955 - S3-E12
Continuity mistake: After Sam refuses to sign the adoption papers, he's leaning forward with one hand to his mouth, talking to Mrs. Thailer. When the shot cuts to a wider angle, he's suddenly leaning back with both hands supporting his weight behind him. (00:22:00)
Blind Faith - February 6, 1964 - S2-E5
Factual error: In the opening scene it is 1964 in New York City. A shot through Brooklyn Bridge shows the World Trade Center towers in the background. The Trade Center was not started until 1968 and not completed until 1973.