These are what we call the 'YMMV items.' Things that some people find in this work. We call them 'your mileage might vary' because not everyone sees these things in the same way. This starts discussions in the trope lists, a thing we don't want. Please use the discussion page if you'd like to discuss any of these items.
YMMV: Lum And Abner
Anvilicious: Many of the World War 2 episodes were dedicated to explaining or promoting various wartime programs (rationing, War Bonds, etc). A lot of them were less than subtle about it.
Life Imitates Art: The town of Waters, Arkansas, on which Lauck and Goff based their fictional town, officially changed its name to Pine Ridge after the show became popular.
Tear Jerker: Abner's wife leaving him. The episode manages the neat trick of being sad and genuinely funny at the same time. Thankfully, they reunite a few episodes later.
They Changed It, Now It Sucks: Starting in 1948, the series tried to mimic the Jack Benny format. This meant adding an orchestra and a live audience, stretching the episodes from 15 mintues to 30 minutes, and making each episode a self-contained story rather than part of a larger arc. Fans weren't too fond of these changes, and, in 1950, the show went on hiatus. It came back in 1953 with the old soap opera format.