Continuity mistake: Jon, Ponch and three neighborhood boys are riding skateboards at a local park. They all wear Pro-tec brand helmets. In one close-up of Jon, the "Pro-tec" logo is backwards.
Continuity mistake: Jon rescues a young girl who was riding in a supermarket cart and almost got hit by a car. With the cart remaining in the street, Jon motioned the driver of the car to back up and go around it. The driver begins to back up and Jon turns to face the girl. In the very next shot, the car is already several feet past the cart.