This is the last episode Ernest T. Bass appears in.
Ernest T. Bass reveals that he weighs 112 pounds.
This is the last episode Malcolm Merriweather appears in.
On Malcolm's first day at the street crossing, he shakes Andy's hand, then takes one step back and salutes him. This type of English protocol goes all the way back to medieval times when a royal subject would never turn their back on a superior. In some cases backing all the way to whatever exit is present before turning away. In the modern English military one step is enough to show proper respect.
Ernest T. tells Andy that he thought Andy was the Widow Bradshaw looking for him. This is a funny reference to a character from another CBS rural-comedy favorite of the time, "The Beverly Hillbillies."