Al tells Sam he doesn't know what it looks like when Sam Leaps, because every time it happens Al returns to the Imaging Chamber. This directly conflicts with several of the series' episodes where Al can clearly be seen reacting to Sam's Leaps, even waving goodbye in a couple of shows. The most notorious of these conflicts is from "Good Morning, Peoria" where Al stands too close to a radio antenna, glows blue, and thinks he's Quantum Leaping.
In the final sequence at the end of the episode, Sam Beckett's name is misspelled as "Becket".
When Sam asks if he glows blue when he leaps Al tells him he does not know - He says the imaging chamber fades out and he does not see Sam leap, but in the episode "Good Morning Peoria" Al starts to glow blue when he is too close to the gutter that Sam has wired up and says "Hey look, I'm going to leap!"
There is no explanation for how Sam would have leaped into his own body wearing clothes and having his own driver's license in his pocket. The last time Sam leaped from his own time was in The Leap Back - June 15, 1945 (1991) where he stripped down to his underwear and wore a bodysuit to enter the quantum accelerator.
Sam's New Mexico drivers license should have had his full name: Samuel.
Pinball machine in the bar is a Gottlieb from 1970.
Sam sees part of Captain Z-Ro (1955) on the TV. There is no way Sam could be watching it in Cokeburg, Pennsylvania in 1953, as the show only aired locally in San Francisco and Los Angeles from 1951 to 1953. Captain Z-Ro (1955) did not start in national syndication until 1955.
Sam says he can't leap home, because he has "a wrong to put right for Al." But his mouth says, "a wrong to put right first."
When Gushie is explaining about Stoppa when he says slate his mouth says coal.
There is no Stallions Springs, New Mexico.
87501 is the zip code for Santa Fe (Pojoaque, NM).
It would have been impossible for Sam to leap since there was no one in the waiting room.