The $40 that the TV repair man wanted to fleece out of Samantha would equal about $336.00 USD in December 2020.
At the beginning, Endora sits on a package of butter in the fridge. The name on the package says, "ALBAIN BUTTER". Richard Albain was in charge of Special Effects for the first two seasons of the show.
This is the first episode where we meet Samantha's father, Maurice.
Endora says the name of the episode a few minutes before it's conclusion.
Once again Endora purposely bungles Darrin's name: Duncan, Donald, and lastly, Darwin. Maurice calls him Donald.