Donald P. Bellisario, series creator and writer of this episode, actually served in the Marine Corps with Lee Harvey Oswald. The scene where Sergeant Bellisario confronts Oswald about his possession of communist literature is based on his own recollections of his first encounter with Oswald.
The opening theme song has changed for this season.
This is the first episode in which Sam leaps into a real person. He would later leap into Clint Hill in Lee Harvey Oswald - October 5, 1957 - November 22, 1963: Part 2 (1992); Dr. Ruth Westheimer in Dr. Ruth - April 25, 1985 (1993); and Elvis Presley in Memphis Melody - July 3, 1954 (1993).
While Dr. Beckett (Scott Bakula) is under the Lee Harvey Oswald persona and firing his rifle downrange, the Marine cadre that is coaching him is "BELLISARIO". Donald P. Bellisario, producer and co-creator of "Quantum Leap".
The episode won an Emmy Award for Outstanding Editing for a Series - Single Camera Production.