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.
Adaptation Displacement: A number of gags from the original commercials were written into episodes of the series. Also done on a regular basis with the commercials themselves; the same basic script would be used in commercials for different brands (but the same product). At one point, the same commericial could've been done about 25 different times, for different Carden & Cherry clients.
Ear Worm: The theme (warning: low volume) to Hey Vern, It's Ernest!
Similarly, in Ernest Goes to Jail, Ernest is mistaken for a criminal and due to be electrocuted. He is offered a blindfold or a cigarette, and replies "No, I'm scared of the dark...and cigarettes can kill you!"
Heartwarming Moments: Jim Varney frequently donned the Ernest costume and visited sick children as part of the Make A Wish Foundation. In fact, up until he passed away, he had several hundred requests, and Varney never missed a one.
Karma Houdini: The bullies who set Ernests hat on fire in Ernest Go to School receive no known consequences.
Misblamed: After this death, the advertising company continued to use footage of him from his commercials and there was a great internet outcry over them exploiting his death... until the company revealed that this was requested by Varney before his death, that they show those commercials despite his death.