The scene with Steve Douglas instructing Chip and Ernie in how to deliver newspapers was filmed on the 40 Acres backlot using the "Mayberry" street; Andy Griffith's home from the series is clearly shown at the end of the scene with the same paint scheme and finish as used in Griffith's show.
The $50.00 Robbie (Don Grady) loses to the two pool sharks would be the equivalent of about $410.00 in the year 2020.