The TV station that is broadcasting as Channel 5 from St. Petersburg, Florida, is KXIW which would be a TV station west of the Mississippi. A TV station in Florida would begin with the letter 'W'. The fictional station, KXIW, is seen in several episodes of The Monkees (in some episodes as KXIU) and at least one episode of Gidget, both produced by Columbia Pictures' TV subsidiary Screen Gems.
A Pennsylvania Railroad train is shown taking Bill from his home in St. Petersburg, Florida to his first job with the Texas Interstate League. The PRR did not operate south of Virginia.
When Bill Johnson (William Bendix) is bouncing around in the locker room of the umpire school, support wires are visible during the final bounce.
Several large mountain ranges are visible in background of ballpark scenes set in St. Petersburg, Florida, an area that has no mountains.