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)
Her Charm - September 26, 1973 - S2-E15
Continuity mistake: The FBI agent's car is riddled with bullets in the opening scene. A few shots later, the same car rounds a corner during the chase, and all the bullet holes have disappeared. (00:03:30)
The Leap Home (1) - November 25, 1969 - S3-E1
Continuity mistake: The corn stalks behind Sam and Al are rustling and moving in a brisk wind in the two-shots. But in all the close-ups, the stalks are standing perfectly still. (00:35:25)
Continuity mistake: In the scene in the courtroom, when Kevin is being questioned by the prosecutor, she introduces several photos of Katie to the judge. The judge keeps two or three of them, and the prosecutor carries one to the witness stand. As she is carrying it to the stand, it can be seen that it is a photo of Katie wearing a dark top, with what appears to be a fluorescent light over Katie's head. The prosecutor then places the photo on the stand for Kevin to view, and it shows Katie wearing a white hospital gown with blue dots. After the prosecutor questions Kevin, the defense attorney walks over to the stand and picks up the photo. This time, it shows Katie in a red v-neck top, with no light above Katie's head. (00:30:35)
Her Charm - September 26, 1973 - S2-E15
Continuity mistake: After the bad guys attack the laundry truck and the girl starts throwing bags out of the truck, one sees in the close up shot a bullet-ridden gray door, but in the wide angle shot it's a pristine brown door.
M.I.A. - April 1, 1969 - S2-E22
Continuity mistake: Near the beginning, when Sam is undressing and Al is telling him who he leaped into, in one shot Sam is taking off his beaded necklace and in the next his necklace is off and he's taking off his belt, but Al continues the sentence so no time passed during the cut.
Sea Bride - June 3, 1954 - S2-E21
Continuity mistake: At the end when Sam punches out the bad guy, there is not a white piece of trash stuck to the back of his left shoulder. Two shots later, there is a white piece of trash there.
Play Ball - August 6, 1961 - S4-E2
Continuity mistake: The mud stain Sam gets in his slide covers most of the front of his baseball jersey. But a few shots later, it becomes a much smaller streak on just the left side. (00:06:30)
Leaping in Without a Net - November 18, 1958 - S2-E19
Continuity mistake: In practice, when Sam's sister tries to do the triple and he misses her, the wide angle shot shows that she is already below Sam's arms when she reaches out. But when it cuts to a close shot, she is able to almost catch his arms.
Piano Man - November 10, 1985 - S3-E15
Continuity mistake: Sam is driving a beat up truck along a road and talking to Al about where Lorraine is. During this sequence it's foggy/smoky in almost all angles, except the view behind their vehicle. It's a shot of a sunny road. Where is the fog behind them?
Genesis (1) - September 13, 1956 - S1-E1
Continuity mistake: In the shower, the Burma Shave cream on Sam's face changes from being partially washed off to being thick and foamy, then back to partially washed off.
Last Dance Before An Execution - May 12, 1971 - S3-E19
Continuity mistake: When Sam is strapped into the electric chair, the huge clock on the wall behind him, which is there so that both the prison doctor and the reporters viewing the execution can mark the time of death, reads 7:00. The final scene runs for more than five minutes - after which the clock still reads 7:00. (00:37:15 - 00:42:00)
Last Dance Before An Execution - May 12, 1971 - S3-E19
Continuity mistake: As Sam is marched down the corridor to the electric chair, Raul reaches through the cell bars and begs him to confess. In long shots, Raul's arms are fully extended. But in close-ups, his arms are folded and wrapped around the bars. (00:38:30)
Leaping in Without a Net - November 18, 1958 - S2-E19
Continuity mistake: Throughout the show, the big top changes from one with many blue stripes on the ceiling, to one with a couple of blue stripes and a dark center, and back again.
Rebel Without a Clue - September 1, 1958 - S3-E9
Continuity mistake: In the diner, the smudges on Sam's face keep changing shape from one shot to the next. (00:14:00)
Lee Harvey Oswald (1) - October 5, 1957 - November 22, 1963 - S5-E1
Continuity mistake: In the Japanese bar, when Sam takes a drink from the beer bottle, the label is facing him. When Oswald (who is Sam's reflection in the mirror) takes the same drink, the label has rotated several degrees and is facing outward, away from him. (00:28:15)
Pool Hall Blues - September 4, 1954 - S2-E18
Continuity mistake: After the bad guy tries to hit the granddaughter with the pool cue, Sam grabs it. In the wide angle shot it shows Sam's left hand about 6-8 inches from the middle (where the dark wood inlay is), but in the next close-up shot, his hand is only about 2 inches from the middle.
Genesis (1) - September 13, 1956 - S1-E1
Continuity mistake: Al casts a shadow on the airplane. That's should not occur, since Al is a hologram. (00:50:05)
It's A Wonderful Leap - May 10, 1958 - S4-E18
Continuity mistake: When Sam goes in to talk with Max's father, Sam/Max is wearing glasses. But in one brief shot, his reflection in the mirror isn't. (00:20:05)
Genesis (2) - September 13, 1956 - S1-E2
Continuity mistake: When Sam ejects from the X-2 and parachutes to safety, he lands on the desert floor and the chute comes down on top of him, covering him completely. In the very next shot, we see him lying face up and the parachute has entirely disappeared.
Chosen answer: Per the Quantum leap page at http://www.scifi.com/quantum/episodes/season5.html. 8 August 1953: An enigmatic leap lands Sam in a Pennsylvania tavern, as his own grown self on the day of his birth. As Al and Gushie work frantically to locate him, Sam befriends a wise bartender (popular character actor McGill, who'd appeared in a different role in the very first "leap") and a group of coal miners. As a host of familiar-looking faces pass through the bar - with different identities than Sam remembers - Sam ponders his life of leaping with Al the bartender, who tells Sam he controls his own destiny. Pressed for more, Al the bartender simply shrugs and says, "Sometimes, 'that's the way it is' is the best explanation." Sam realizes he must right at least one more wrong before he can go home, and leaps back to tell Al Calvavicci's wife Beth (from "M.I.A.") to wait for Al, who will survive Vietnam and come home to her. The closing title cards state that Beth and Al have four daughters and will shortly celebrate their 39th wedding anniversary ... and that Sam Beckett never returned home.
Boobra