Audio problem: When the mayor stalks out of Vilattic's office, we hear the sound effect of the door slamming before it actually closes. (00:14:00)
Continuity mistake: Kimble is wounded in the leg and is limping badly when he escapes at the end. Yet in the epilogue, supposedly occurring soon after, he's walking down a road with no sign of the limp, and has also acquired a cowboy hat that he didn't have before. (00:45:50)
Continuity mistake: The captured Kimble lies face down on the ground and rests his head on his folded arms. When the shot cuts to a close-up, however, he's suddenly resting on his elbows and looking up instead. (00:13:00)
Continuity mistake: The leaves sticking to the back of Kimble's coat change positions completely between takes. (00:40:00)
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)
Answer: Production vehicle models aren't in sync with the calendar year. The '65 Mustang began production in March 1964 and first sold in April 1964, before it was "introduced" the following year. I don't know which model was seen in the episode, but the 2+2 fastback was sold in September 1964. The 1964 film "Goldfinger" uses a 1965 Mustang as part of Ford's product placement. Basically, in the 1930's, FDR ordered automakers to release vehicles in the fall of the preceding calendar year "as a means of facilitating regularization of employment in the industry." Now, automakers can release new models as early as Jan 2 of the preceding year.
Bishop73