The Real McCoys (1957)

S01E12 Gambling Is a Sin

Grampa and Luke decide to have their minister over for dinner, hoping to help Kate join a church committee. However, before the minister arrives, Grampa has agreed to let a billboard salesman use the barn roof for a gambling house ad from Las Vegas. To resolve the situation, Luke takes matters into his own hands and cleverly paints over some of the letters in the advertisement.