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.
Jerk Ass: The diner owner play by Larry Storch in "Saddled".
Harsher in Hindsight: Since the airing of the Emergency! TV movie "Survivor on Charter #220", there have been two mid-air collisions in Southern California...the first one happening just SIX MONTHS after the movie originally aired. Even worse...neither of the people in the planes involved in both incidents survived the collisions, PLUS there were fatalities on the ground due to the crashes as well.
Growing the Beard: It took a while for the show to hit its stride. About the length of time it took for Chet and Marco to grow their PornStaches and Gage to grow his mullet.
Shipping: Predictably, mostly involving Johnny/Roy slash, though every now and then you get much more out-there ones. Frequently results in Die for Our Ship for Joanne.
Stock Footage Failure: In season one, the paramedics drive a 1973 model Dodge with a silver front bumper ... except in the parts where they are rushing to a fire in a late-60's model with a red bumper. The red bumper truck is from the movie that served as the series pilot.
Values Dissonance: Chet spends the entirety of "Peace Pipe" making racist jokes about Johnny's Native American heritage. It's played for laughs but John clearly does not find it funny and says so.
What an Idiot: An early season 5 episode features a woman whose son is displaying early signs of polio. She at first insisted it had to be something else then said that she hadn't gotten him the vaccine because she thought it had been controlled to the point where it was impossible to contract the disease any more.